397085707 has 4 divisors (see below), whose sum is σ = 397270120. Its totient is φ = 396901296.

The previous prime is 397085701. The next prime is 397085713. The reversal of 397085707 is 707580793.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 707580793 = 53 ⋅13350581.

It is an interprime number because it is at equal distance from previous prime (397085701) and next prime (397085713).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-397085707 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (397085701) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 88938 + ... + 93295.

It is an arithmetic number, because the mean of its divisors is an integer number (99317530).

Almost surely, 2^397085707 is an apocalyptic number.

397085707 is a deficient number, since it is larger than the sum of its proper divisors (184413).

397085707 is a wasteful number, since it uses less digits than its factorization.

397085707 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 184412.

The product of its (nonzero) digits is 370440, while the sum is 46.

The square root of 397085707 is about 19927.0094846166. The cubic root of 397085707 is about 735.0125451759.

The spelling of 397085707 in words is "three hundred ninety-seven million, eighty-five thousand, seven hundred seven".