397863532 has 12 divisors (see below), whose sum is σ = 759557736. Its totient is φ = 180847040.

The previous prime is 397863523. The next prime is 397863541. The reversal of 397863532 is 235368793.

It is an interprime number because it is at equal distance from previous prime (397863523) and next prime (397863541).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4521133 + ... + 4521220.

It is an arithmetic number, because the mean of its divisors is an integer number (63296478).

Almost surely, 2^397863532 is an apocalyptic number.

It is an amenable number.

397863532 is a deficient number, since it is larger than the sum of its proper divisors (361694204).

397863532 is a wasteful number, since it uses less digits than its factorization.

397863532 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9042368 (or 9042366 counting only the distinct ones).

The product of its digits is 816480, while the sum is 46.

The square root of 397863532 is about 19946.5167886526. The cubic root of 397863532 is about 735.4921546849.

The spelling of 397863532 in words is "three hundred ninety-seven million, eight hundred sixty-three thousand, five hundred thirty-two".