396697507 has 2 divisors, whose sum is σ = 396697508. Its totient is φ = 396697506.

The previous prime is 396697493. The next prime is 396697529. The reversal of 396697507 is 705796693.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-396697507 is a prime.

It is not a weakly prime, because it can be changed into another prime (396697547) 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, 198348753 + 198348754.

It is an arithmetic number, because the mean of its divisors is an integer number (198348754).

Almost surely, 2^396697507 is an apocalyptic number.

396697507 is a deficient number, since it is larger than the sum of its proper divisors (1).

396697507 is an equidigital number, since it uses as much as digits as its factorization.

396697507 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2143260, while the sum is 52.

The square root of 396697507 is about 19917.2665544246. The cubic root of 396697507 is about 734.7729454305.

The spelling of 396697507 in words is "three hundred ninety-six million, six hundred ninety-seven thousand, five hundred seven".