397569464 has 16 divisors (see below), whose sum is σ = 747132120. Its totient is φ = 198334240.

The previous prime is 397569457. The next prime is 397569493. The reversal of 397569464 is 464965793.

It is a super-2 number, since 2×397569464² = 316122957410494592, which contains 22 as substring.

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 52547 + ... + 59634.

Almost surely, 2^397569464 is an apocalyptic number.

It is an amenable number.

397569464 is a deficient number, since it is larger than the sum of its proper divisors (349562656).

397569464 is a wasteful number, since it uses less digits than its factorization.

397569464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112630 (or 112626 counting only the distinct ones).

The product of its digits is 4898880, while the sum is 53.

The square root of 397569464 is about 19939.1440137234. The cubic root of 397569464 is about 735.3109049196.

The spelling of 397569464 in words is "three hundred ninety-seven million, five hundred sixty-nine thousand, four hundred sixty-four".