397017585 has 64 divisors (see below), whose sum is σ = 737333760. Its totient is φ = 202487040.

The previous prime is 397017563. The next prime is 397017623. The reversal of 397017585 is 585710793.

It is not a de Polignac number, because 397017585 - 2⁵ = 397017553 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 397017585.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 304044 + ... + 305346.

It is an arithmetic number, because the mean of its divisors is an integer number (11520840).

Almost surely, 2^397017585 is an apocalyptic number.

It is an amenable number.

397017585 is a deficient number, since it is larger than the sum of its proper divisors (340316175).

397017585 is a wasteful number, since it uses less digits than its factorization.

397017585 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1415 (or 1409 counting only the distinct ones).

The product of its (nonzero) digits is 264600, while the sum is 45.

The square root of 397017585 is about 19925.3001232102. The cubic root of 397017585 is about 734.9705111034.

The spelling of 397017585 in words is "three hundred ninety-seven million, seventeen thousand, five hundred eighty-five".