397452974 has 4 divisors (see below), whose sum is σ = 596179464. Its totient is φ = 198726486.

The previous prime is 397452971. The next prime is 397452983. The reversal of 397452974 is 479254793.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (397452971) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 99363242 + ... + 99363245.

It is an arithmetic number, because the mean of its divisors is an integer number (149044866).

Almost surely, 2^397452974 is an apocalyptic number.

397452974 is a deficient number, since it is larger than the sum of its proper divisors (198726490).

397452974 is a wasteful number, since it uses less digits than its factorization.

397452974 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 198726489.

The product of its digits is 1905120, while the sum is 50.

The square root of 397452974 is about 19936.2226612766. Note that the first 3 decimals coincide. The cubic root of 397452974 is about 735.2390812155.

The spelling of 397452974 in words is "three hundred ninety-seven million, four hundred fifty-two thousand, nine hundred seventy-four".