397369936 has 20 divisors (see below), whose sum is σ = 790713652. Its totient is φ = 193314816.

The previous prime is 397369901. The next prime is 397369949. The reversal of 397369936 is 639963793.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 297769536 + 99600400 = 17256^2 + 9980^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 335025 + ... + 336208.

Almost surely, 2^397369936 is an apocalyptic number.

It is an amenable number.

397369936 is a deficient number, since it is larger than the sum of its proper divisors (393343716).

397369936 is a wasteful number, since it uses less digits than its factorization.

397369936 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 671278 (or 671272 counting only the distinct ones).

The product of its digits is 4960116, while the sum is 55.

The square root of 397369936 is about 19934.1399613828. The cubic root of 397369936 is about 735.1878742894.

The spelling of 397369936 in words is "three hundred ninety-seven million, three hundred sixty-nine thousand, nine hundred thirty-six".