996403831 has 2 divisors, whose sum is σ = 996403832. Its totient is φ = 996403830.

The previous prime is 996403819. The next prime is 996403843. The reversal of 996403831 is 138304699.

It is a balanced prime because it is at equal distance from previous prime (996403819) and next prime (996403843).

It is a cyclic number.

It is not a de Polignac number, because 996403831 - 2⁵ = 996403799 is a prime.

It is a super-2 number, since 2×996403831² = 1985641188862953122, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (996403231) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 498201915 + 498201916.

It is an arithmetic number, because the mean of its divisors is an integer number (498201916).

Almost surely, 2^996403831 is an apocalyptic number.

996403831 is a deficient number, since it is larger than the sum of its proper divisors (1).

996403831 is an equidigital number, since it uses as much as digits as its factorization.

996403831 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 139968, while the sum is 43.

The square root of 996403831 is about 31565.8649651803. The cubic root of 996403831 is about 998.7998371855.

The spelling of 996403831 in words is "nine hundred ninety-six million, four hundred three thousand, eight hundred thirty-one".