397875576 has 128 divisors (see below), whose sum is σ = 1182044160. Its totient is φ = 109209600.

The previous prime is 397875529. The next prime is 397875587. The reversal of 397875576 is 675578793.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1254970 + ... + 1255286.

It is an arithmetic number, because the mean of its divisors is an integer number (9234720).

Almost surely, 2^397875576 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 397875576, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (591022080).

397875576 is an abundant number, since it is smaller than the sum of its proper divisors (784168584).

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

397875576 is a wasteful number, since it uses less digits than its factorization.

397875576 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 605 (or 601 counting only the distinct ones).

The product of its digits is 11113200, while the sum is 57.

The square root of 397875576 is about 19946.8186937165. The cubic root of 397875576 is about 735.4995761393.

The spelling of 397875576 in words is "three hundred ninety-seven million, eight hundred seventy-five thousand, five hundred seventy-six".