396007831 has 2 divisors, whose sum is σ = 396007832. Its totient is φ = 396007830.

The previous prime is 396007819. The next prime is 396007837. The reversal of 396007831 is 138700693.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 396007831 - 2²⁷ = 261790103 is a prime.

It is a super-2 number, since 2×396007831² = 313644404426649122, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (396007837) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 198003915 + 198003916.

It is an arithmetic number, because the mean of its divisors is an integer number (198003916).

Almost surely, 2^396007831 is an apocalyptic number.

396007831 is a deficient number, since it is larger than the sum of its proper divisors (1).

396007831 is an equidigital number, since it uses as much as digits as its factorization.

396007831 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 27216, while the sum is 37.

The square root of 396007831 is about 19899.9455024379. The cubic root of 396007831 is about 734.3468867729.

The spelling of 396007831 in words is "three hundred ninety-six million, seven thousand, eight hundred thirty-one".