45839831 has 4 divisors (see below), whose sum is σ = 45853752. Its totient is φ = 45825912.

The previous prime is 45839819. The next prime is 45839861. The reversal of 45839831 is 13893854.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 45839831 - 2⁶ = 45839767 is a prime.

It is a super-2 number, since 2×45839831² = 4202580212217122, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45839861) 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, 1061 + ... + 9633.

It is an arithmetic number, because the mean of its divisors is an integer number (11463438).

Almost surely, 2^45839831 is an apocalyptic number.

45839831 is a deficient number, since it is larger than the sum of its proper divisors (13921).

45839831 is an equidigital number, since it uses as much as digits as its factorization.

45839831 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13920.

The product of its digits is 103680, while the sum is 41.

The square root of 45839831 is about 6770.5118713433. The cubic root of 45839831 is about 357.8884388609. Note that the first 3 decimals are identical.

The spelling of 45839831 in words is "forty-five million, eight hundred thirty-nine thousand, eight hundred thirty-one".