397574707 has 2 divisors, whose sum is σ = 397574708. Its totient is φ = 397574706.

The previous prime is 397574701. The next prime is 397574741. The reversal of 397574707 is 707475793.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-397574707 is a prime.

It is a super-2 number, since 2×397574707² = 316131295292271698, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (397574701) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 198787353 + 198787354.

It is an arithmetic number, because the mean of its divisors is an integer number (198787354).

Almost surely, 2^397574707 is an apocalyptic number.

397574707 is a deficient number, since it is larger than the sum of its proper divisors (1).

397574707 is an equidigital number, since it uses as much as digits as its factorization.

397574707 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1296540, while the sum is 49.

The square root of 397574707 is about 19939.2754883421. The cubic root of 397574707 is about 735.3141372420.

The spelling of 397574707 in words is "three hundred ninety-seven million, five hundred seventy-four thousand, seven hundred seven".