397592969 has 2 divisors, whose sum is σ = 397592970. Its totient is φ = 397592968.

The previous prime is 397592963. The next prime is 397592981. The reversal of 397592969 is 969295793.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 388562944 + 9030025 = 19712^2 + 3005^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-397592969 is a prime.

It is a super-2 number, since 2×397592969² = 316160337996469922, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (397592963) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 198796484 + 198796485.

It is an arithmetic number, because the mean of its divisors is an integer number (198796485).

Almost surely, 2^397592969 is an apocalyptic number.

It is an amenable number.

397592969 is a deficient number, since it is larger than the sum of its proper divisors (1).

397592969 is an equidigital number, since it uses as much as digits as its factorization.

397592969 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 8266860, while the sum is 59.

The square root of 397592969 is about 19939.7334234939. The cubic root of 397592969 is about 735.3253955883.

The spelling of 397592969 in words is "three hundred ninety-seven million, five hundred ninety-two thousand, nine hundred sixty-nine".