397000085 has 16 divisors (see below), whose sum is σ = 488220480. Its totient is φ = 309803520.

The previous prime is 397000081. The next prime is 397000141. The reversal of 397000085 is 580000793.

It is not a de Polignac number, because 397000085 - 2² = 397000081 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (397000081) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 33509 + ... + 43781.

It is an arithmetic number, because the mean of its divisors is an integer number (30513780).

Almost surely, 2^397000085 is an apocalyptic number.

It is an amenable number.

397000085 is a deficient number, since it is larger than the sum of its proper divisors (91220395).

397000085 is a wasteful number, since it uses less digits than its factorization.

397000085 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10468.

The product of its (nonzero) digits is 7560, while the sum is 32.

The square root of 397000085 is about 19924.8609781850. The cubic root of 397000085 is about 734.9597121083.

The spelling of 397000085 in words is "three hundred ninety-seven million, eighty-five", and thus it is an aban number.