397652 has 12 divisors (see below), whose sum is σ = 704340. Its totient is φ = 196416.

The previous prime is 397643. The next prime is 397673. The reversal of 397652 is 256793.

It can be written as a sum of positive squares in 2 ways, for example, as 42436 + 355216 = 206^2 + 596^2 .

It is a super-2 number, since 2×397652² = 316254226208, which contains 22 as substring.

It is a congruent number.

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, 203 + ... + 914.

It is an arithmetic number, because the mean of its divisors is an integer number (58695).

2³⁹⁷⁶⁵² is an apocalyptic number.

It is an amenable number.

397652 is a deficient number, since it is larger than the sum of its proper divisors (306688).

397652 is a wasteful number, since it uses less digits than its factorization.

397652 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1210 (or 1208 counting only the distinct ones).

The product of its digits is 11340, while the sum is 32.

The square root of 397652 is about 630.5965429655. The cubic root of 397652 is about 73.5361785271.

The spelling of 397652 in words is "three hundred ninety-seven thousand, six hundred fifty-two".