397010431 has 2 divisors, whose sum is σ = 397010432. Its totient is φ = 397010430.

The previous prime is 397010423. The next prime is 397010441. The reversal of 397010431 is 134010793.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 397010431 - 2³ = 397010423 is a prime.

It is a super-2 number, since 2×397010431² = 315234564645611522, which contains 22 as substring.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 397010431.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (397010441) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 198505215 + 198505216.

It is an arithmetic number, because the mean of its divisors is an integer number (198505216).

Almost surely, 2^397010431 is an apocalyptic number.

397010431 is a deficient number, since it is larger than the sum of its proper divisors (1).

397010431 is an equidigital number, since it uses as much as digits as its factorization.

397010431 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2268, while the sum is 28.

The square root of 397010431 is about 19925.1206018935. The cubic root of 397010431 is about 734.9660965126.

The spelling of 397010431 in words is "three hundred ninety-seven million, ten thousand, four hundred thirty-one".