397934674 has 16 divisors (see below), whose sum is σ = 634786200. Its totient is φ = 186441984.

The previous prime is 397934611. The next prime is 397934699. The reversal of 397934674 is 476439793.

It can be written as a sum of positive squares in 4 ways, for example, as 360810025 + 37124649 = 18995^2 + 6093^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17769 + ... + 33340.

Almost surely, 2^397934674 is an apocalyptic number.

397934674 is a gapful number since it is divisible by the number (34) formed by its first and last digit.

397934674 is a deficient number, since it is larger than the sum of its proper divisors (236851526).

397934674 is a wasteful number, since it uses less digits than its factorization.

397934674 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51357.

The product of its digits is 3429216, while the sum is 52.

The square root of 397934674 is about 19948.3000278219. The cubic root of 397934674 is about 735.5359898698.

The spelling of 397934674 in words is "three hundred ninety-seven million, nine hundred thirty-four thousand, six hundred seventy-four".