397892973744 has 120 divisors (see below), whose sum is σ = 1299703242240. Its totient is φ = 111264891264.

The previous prime is 397892973733. The next prime is 397892973769. The reversal of 397892973744 is 447379298793.

397892973744 is a `hidden beast` number, since 3 + 97 + 89 + 2 + 97 + 374 + 4 = 666.

It is a Harshad number since it is a multiple of its sum of digits (72).

It is a nude number because it is divisible by every one of its digits.

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 23 ways as a sum of consecutive naturals, for example, 4151934 + ... + 4246685.

It is an arithmetic number, because the mean of its divisors is an integer number (10830860352).

Almost surely, 2^397892973744 is an apocalyptic number.

It is an amenable number.

397892973744 is an abundant number, since it is smaller than the sum of its proper divisors (901810268496).

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

397892973744 is a wasteful number, since it uses less digits than its factorization.

397892973744 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8398687 (or 8398678 counting only the distinct ones).

The product of its digits is 576108288, while the sum is 72.

The spelling of 397892973744 in words is "three hundred ninety-seven billion, eight hundred ninety-two million, nine hundred seventy-three thousand, seven hundred forty-four".