397863762 has 16 divisors (see below), whose sum is σ = 837608160. Its totient is φ = 125641152.

The previous prime is 397863721. The next prime is 397863769. The reversal of 397863762 is 267368793.

It is a super-2 number, since 2×397863762² = 316591146225585288, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (397863769) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1744903 + ... + 1745130.

It is an arithmetic number, because the mean of its divisors is an integer number (52350510).

Almost surely, 2^397863762 is an apocalyptic number.

397863762 is an abundant number, since it is smaller than the sum of its proper divisors (439744398).

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

397863762 is a wasteful number, since it uses less digits than its factorization.

397863762 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3490057.

The product of its digits is 2286144, while the sum is 51.

The square root of 397863762 is about 19946.5225540694. The cubic root of 397863762 is about 735.4922964112.

The spelling of 397863762 in words is "three hundred ninety-seven million, eight hundred sixty-three thousand, seven hundred sixty-two".