397039585 has 16 divisors (see below), whose sum is σ = 485646480. Its totient is φ = 311558400.

The previous prime is 397039567. The next prime is 397039603. The reversal of 397039585 is 585930793.

It is an interprime number because it is at equal distance from previous prime (397039567) and next prime (397039603).

It can be written as a sum of positive squares in 8 ways, for example, as 92083216 + 304956369 = 9596^2 + 17463^2 .

It is not a de Polignac number, because 397039585 - 2⁵ = 397039553 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 51439 + ... + 58651.

It is an arithmetic number, because the mean of its divisors is an integer number (30352905).

Almost surely, 2^397039585 is an apocalyptic number.

It is an amenable number.

397039585 is a deficient number, since it is larger than the sum of its proper divisors (88606895).

397039585 is a wasteful number, since it uses less digits than its factorization.

397039585 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7428.

The product of its (nonzero) digits is 1020600, while the sum is 49.

The square root of 397039585 is about 19925.8521775105. The cubic root of 397039585 is about 734.9840865328.

The spelling of 397039585 in words is "three hundred ninety-seven million, thirty-nine thousand, five hundred eighty-five".