397172576707 has 2 divisors, whose sum is σ = 397172576708. Its totient is φ = 397172576706.

The previous prime is 397172576701. The next prime is 397172576737. The reversal of 397172576707 is 707675271793.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-397172576707 is a prime.

It is not a weakly prime, because it can be changed into another prime (397172576701) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 198586288353 + 198586288354.

It is an arithmetic number, because the mean of its divisors is an integer number (198586288354).

Almost surely, 2^397172576707 is an apocalyptic number.

397172576707 is a deficient number, since it is larger than the sum of its proper divisors (1).

397172576707 is an equidigital number, since it uses as much as digits as its factorization.

397172576707 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 27227340, while the sum is 61.

The spelling of 397172576707 in words is "three hundred ninety-seven billion, one hundred seventy-two million, five hundred seventy-six thousand, seven hundred seven".