397384004 has 6 divisors (see below), whose sum is σ = 695422014. Its totient is φ = 198692000.

The previous prime is 397383989. The next prime is 397384007. The reversal of 397384004 is 400483793.

It can be written as a sum of positive squares in only one way, i.e., 389272900 + 8111104 = 19730^2 + 2848^2 .

It is not an unprimeable number, because it can be changed into a prime (397384007) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49672997 + ... + 49673004.

It is an arithmetic number, because the mean of its divisors is an integer number (115903669).

Almost surely, 2^397384004 is an apocalyptic number.

It is an amenable number.

397384004 is a deficient number, since it is larger than the sum of its proper divisors (298038010).

397384004 is a wasteful number, since it uses less digits than its factorization.

397384004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99346005 (or 99346003 counting only the distinct ones).

The product of its (nonzero) digits is 72576, while the sum is 38.

The square root of 397384004 is about 19934.4928202350. The cubic root of 397384004 is about 735.1965500850.

The spelling of 397384004 in words is "three hundred ninety-seven million, three hundred eighty-four thousand, four".