397874910 has 16 divisors (see below), whose sum is σ = 954899856. Its totient is φ = 106099968.

The previous prime is 397874887. The next prime is 397874923. The reversal of 397874910 is 19478793.

It is a self number, because there is not a number n which added to its sum of digits gives 397874910.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6631219 + ... + 6631278.

It is an arithmetic number, because the mean of its divisors is an integer number (59681241).

Almost surely, 2^397874910 is an apocalyptic number.

397874910 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

397874910 is an abundant number, since it is smaller than the sum of its proper divisors (557024946).

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

397874910 is a wasteful number, since it uses less digits than its factorization.

397874910 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13262507.

The product of its (nonzero) digits is 381024, while the sum is 48.

The square root of 397874910 is about 19946.8019993181. The cubic root of 397874910 is about 735.4991657572.

The spelling of 397874910 in words is "three hundred ninety-seven million, eight hundred seventy-four thousand, nine hundred ten".