397472 has 12 divisors (see below), whose sum is σ = 782586. Its totient is φ = 198720.

The previous prime is 397469. The next prime is 397489. The reversal of 397472 is 274793.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 234256 + 163216 = 484^2 + 404^2 .

It is a Harshad number since it is a multiple of its sum of digits (32), and also a Moran number because the ratio is a prime number: 12421 = 397472 / (3 + 9 + 7 + 4 + 7 + 2).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6179 + ... + 6242.

2³⁹⁷⁴⁷² is an apocalyptic number.

397472 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

397472 is a deficient number, since it is larger than the sum of its proper divisors (385114).

397472 is a wasteful number, since it uses less digits than its factorization.

397472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12431 (or 12423 counting only the distinct ones).

The product of its digits is 10584, while the sum is 32.

The square root of 397472 is about 630.4538048105. The cubic root of 397472 is about 73.5250812948.

397472 divided by its sum of digits (32) gives a palindrome (12421).

The spelling of 397472 in words is "three hundred ninety-seven thousand, four hundred seventy-two".