397288 has 16 divisors (see below), whose sum is σ = 759780. Its totient is φ = 194688.

The previous prime is 397283. The next prime is 397289. The reversal of 397288 is 882793.

It can be written as a sum of positive squares in 2 ways, for example, as 386884 + 10404 = 622^2 + 102^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (397283) by changing a digit.

397288 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 45 + ... + 892.

2³⁹⁷²⁸⁸ is an apocalyptic number.

It is an amenable number.

397288 is a deficient number, since it is larger than the sum of its proper divisors (362492).

397288 is a wasteful number, since it uses less digits than its factorization.

397288 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 996 (or 992 counting only the distinct ones).

The product of its digits is 24192, while the sum is 37.

The square root of 397288 is about 630.3078612868. The cubic root of 397288 is about 73.5137339939.

The spelling of 397288 in words is "three hundred ninety-seven thousand, two hundred eighty-eight".