1083861843 has 32 divisors (see below), whose sum is σ = 1548794880. Its totient is φ = 674179200.

The previous prime is 1083861839. The next prime is 1083861853. The reversal of 1083861843 is 3481683801.

It is not a de Polignac number, because 1083861843 - 2² = 1083861839 is a prime.

It is a super-2 number, since 2×1083861843² = 2349512989422713298, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1083861795 and 1083861804.

It is not an unprimeable number, because it can be changed into a prime (1083861803) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2225346 + ... + 2225832.

It is an arithmetic number, because the mean of its divisors is an integer number (48399840).

Almost surely, 2^1083861843 is an apocalyptic number.

1083861843 is a deficient number, since it is larger than the sum of its proper divisors (464933037).

1083861843 is an equidigital number, since it uses as much as digits as its factorization.

1083861843 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 692 (or 658 counting only the distinct ones).

The product of its (nonzero) digits is 110592, while the sum is 42.

The square root of 1083861843 is about 32922.0570894347. The cubic root of 1083861843 is about 1027.2070130358.

The spelling of 1083861843 in words is "one billion, eighty-three million, eight hundred sixty-one thousand, eight hundred forty-three".