397916 has 12 divisors (see below), whose sum is σ = 719040. Its totient is φ = 192480.

The previous prime is 397907. The next prime is 397921. The reversal of 397916 is 619793.

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, 1481 + ... + 1728.

It is an arithmetic number, because the mean of its divisors is an integer number (59920).

2³⁹⁷⁹¹⁶ is an apocalyptic number.

It is an amenable number.

397916 is a deficient number, since it is larger than the sum of its proper divisors (321124).

397916 is a wasteful number, since it uses less digits than its factorization.

397916 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3244 (or 3242 counting only the distinct ones).

The product of its digits is 10206, while the sum is 35.

The square root of 397916 is about 630.8058338348. The cubic root of 397916 is about 73.5524484117.

The spelling of 397916 in words is "three hundred ninety-seven thousand, nine hundred sixteen".