1083871993 has 8 divisors (see below), whose sum is σ = 1096835040. Its totient is φ = 1070926560.

The previous prime is 1083871991. The next prime is 1083872011. The reversal of 1083871993 is 3991783801.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1083871993 - 2¹ = 1083871991 is a prime.

It is a super-3 number, since 3×1083871993³ (a number of 28 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1083871991) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 151998 + ... + 158968.

It is an arithmetic number, because the mean of its divisors is an integer number (137104380).

Almost surely, 2^1083871993 is an apocalyptic number.

It is an amenable number.

1083871993 is a deficient number, since it is larger than the sum of its proper divisors (12963047).

1083871993 is an equidigital number, since it uses as much as digits as its factorization.

1083871993 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8807.

The product of its (nonzero) digits is 326592, while the sum is 49.

The square root of 1083871993 is about 32922.2112410452. The cubic root of 1083871993 is about 1027.2102195080.

The spelling of 1083871993 in words is "one billion, eighty-three million, eight hundred seventy-one thousand, nine hundred ninety-three".