397705088 has 32 divisors (see below), whose sum is σ = 864333720. Its totient is φ = 180774400.

The previous prime is 397705081. The next prime is 397705103. The reversal of 397705088 is 880507793.

It is a tau number, because it is divible by the number of its divisors (32).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (397705081) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 139823 + ... + 142638.

Almost surely, 2^397705088 is an apocalyptic number.

It is an amenable number.

397705088 is an abundant number, since it is smaller than the sum of its proper divisors (466628632).

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

397705088 is a wasteful number, since it uses less digits than its factorization.

397705088 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 282486 (or 282474 counting only the distinct ones).

The product of its (nonzero) digits is 423360, while the sum is 47.

The square root of 397705088 is about 19942.5446721325. The cubic root of 397705088 is about 735.3945083125.

The spelling of 397705088 in words is "three hundred ninety-seven million, seven hundred five thousand, eighty-eight".