397485 has 36 divisors (see below), whose sum is σ = 767676. Its totient is φ = 190080.

The previous prime is 397469. The next prime is 397489. The reversal of 397485 is 584793.

It can be written as a sum of positive squares in 2 ways, for example, as 184041 + 213444 = 429^2 + 462^2 .

It is not a de Polignac number, because 397485 - 2⁴ = 397469 is a prime.

It is a nialpdrome in base 9.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (397489) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 5409 + ... + 5481.

2³⁹⁷⁴⁸⁵ is an apocalyptic number.

It is an amenable number.

397485 is a deficient number, since it is larger than the sum of its proper divisors (370191).

397485 is a wasteful number, since it uses less digits than its factorization.

397485 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106 (or 92 counting only the distinct ones).

The product of its digits is 30240, while the sum is 36.

The square root of 397485 is about 630.4641147599. The cubic root of 397485 is about 73.5258828738.

The spelling of 397485 in words is "three hundred ninety-seven thousand, four hundred eighty-five".