397736 has 16 divisors (see below), whose sum is σ = 756000. Its totient is φ = 196144.

The previous prime is 397729. The next prime is 397751. The reversal of 397736 is 637793.

It is a junction number, because it is equal to n+sod(n) for n = 397696 and 397705.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 365 + ... + 963.

It is an arithmetic number, because the mean of its divisors is an integer number (47250).

2³⁹⁷⁷³⁶ is an apocalyptic number.

It is an amenable number.

397736 is a deficient number, since it is larger than the sum of its proper divisors (358264).

397736 is a wasteful number, since it uses less digits than its factorization.

397736 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 688 (or 684 counting only the distinct ones).

The product of its digits is 23814, while the sum is 35.

The square root of 397736 is about 630.6631430486. The cubic root of 397736 is about 73.5413560894.

The spelling of 397736 in words is "three hundred ninety-seven thousand, seven hundred thirty-six".