1083766853 has 4 divisors (see below), whose sum is σ = 1167133548. Its totient is φ = 1000400160.

The previous prime is 1083766829. The next prime is 1083766861. The reversal of 1083766853 is 3586673801.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3586673801 = 5503 ⋅651767.

It can be written as a sum of positive squares in 2 ways, for example, as 692637124 + 391129729 = 26318^2 + 19777^2 .

It is a cyclic number.

It is not a de Polignac number, because 1083766853 - 2¹⁴ = 1083750469 is a prime.

It is a super-3 number, since 3×1083766853³ (a number of 28 digits) contains 333 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1083766798 and 1083766807.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1083766823) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 41683328 + ... + 41683353.

It is an arithmetic number, because the mean of its divisors is an integer number (291783387).

Almost surely, 2^1083766853 is an apocalyptic number.

1083766853 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

1083766853 is a deficient number, since it is larger than the sum of its proper divisors (83366695).

1083766853 is an equidigital number, since it uses as much as digits as its factorization.

1083766853 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83366694.

The product of its (nonzero) digits is 725760, while the sum is 47.

The square root of 1083766853 is about 32920.6144079967. The cubic root of 1083766853 is about 1027.1770039083.

The spelling of 1083766853 in words is "one billion, eighty-three million, seven hundred sixty-six thousand, eight hundred fifty-three".