397098312 has 64 divisors (see below), whose sum is σ = 1115614080. Its totient is φ = 116869632.

The previous prime is 397098307. The next prime is 397098329. The reversal of 397098312 is 213890793.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20493 + ... + 34844.

It is an arithmetic number, because the mean of its divisors is an integer number (17431470).

Almost surely, 2^397098312 is an apocalyptic number.

It is an amenable number.

397098312 is an abundant number, since it is smaller than the sum of its proper divisors (718515768).

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

397098312 is a wasteful number, since it uses less digits than its factorization.

397098312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55382 (or 55378 counting only the distinct ones).

The product of its (nonzero) digits is 81648, while the sum is 42.

The square root of 397098312 is about 19927.3257613760. The cubic root of 397098312 is about 735.0203224516.

The spelling of 397098312 in words is "three hundred ninety-seven million, ninety-eight thousand, three hundred twelve".