397197948 has 48 divisors (see below), whose sum is σ = 1105251840. Its totient is φ = 108550464.

The previous prime is 397197937. The next prime is 397197989. The reversal of 397197948 is 849791793.

It is a congruent number.

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, 100863 + ... + 104726.

It is an arithmetic number, because the mean of its divisors is an integer number (23026080).

Almost surely, 2^397197948 is an apocalyptic number.

It is an amenable number.

397197948 is an abundant number, since it is smaller than the sum of its proper divisors (708053892).

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

397197948 is a wasteful number, since it uses less digits than its factorization.

397197948 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 205626 (or 205624 counting only the distinct ones).

The product of its digits is 3429216, while the sum is 57.

The square root of 397197948 is about 19929.8255888003. The cubic root of 397197948 is about 735.0817919991.

The spelling of 397197948 in words is "three hundred ninety-seven million, one hundred ninety-seven thousand, nine hundred forty-eight".