397006626 has 16 divisors (see below), whose sum is σ = 799344000. Its totient is φ = 131447088.

The previous prime is 397006613. The next prime is 397006651. The reversal of 397006626 is 626600793.

It is a super-2 number, since 2×397006626² = 315228522175807752, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 221146 + ... + 222933.

It is an arithmetic number, because the mean of its divisors is an integer number (49959000).

Almost surely, 2^397006626 is an apocalyptic number.

397006626 is an abundant number, since it is smaller than the sum of its proper divisors (402337374).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

397006626 is a wasteful number, since it uses less digits than its factorization.

397006626 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 444233.

The product of its (nonzero) digits is 81648, while the sum is 39.

The square root of 397006626 is about 19925.0251191812. The cubic root of 397006626 is about 734.9637485013.

The spelling of 397006626 in words is "three hundred ninety-seven million, six thousand, six hundred twenty-six".