397912 has 8 divisors (see below), whose sum is σ = 746100. Its totient is φ = 198952.

The previous prime is 397907. The next prime is 397921. The reversal of 397912 is 219793.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is an unprimeable number.

397912 is an untouchable number, because it is not equal to the sum of proper divisors of any 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 as a sum of consecutive naturals, namely, 24862 + ... + 24877.

2³⁹⁷⁹¹² is an apocalyptic number.

It is an amenable number.

397912 is a deficient number, since it is larger than the sum of its proper divisors (348188).

397912 is a wasteful number, since it uses less digits than its factorization.

397912 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49745 (or 49741 counting only the distinct ones).

The product of its digits is 3402, while the sum is 31.

The square root of 397912 is about 630.8026632791. The cubic root of 397912 is about 73.5522019520.

It can be divided in two parts, 39791 and 2, that added together give a palindrome (39793).

The spelling of 397912 in words is "three hundred ninety-seven thousand, nine hundred twelve".