397313065 has 4 divisors (see below), whose sum is σ = 476775684. Its totient is φ = 317850448.

The previous prime is 397313057. The next prime is 397313071. The reversal of 397313065 is 560313793.

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: 560313793 = 13 ⋅43101061.

It can be written as a sum of positive squares in 2 ways, for example, as 161874729 + 235438336 = 12723^2 + 15344^2 .

It is a cyclic number.

It is not a de Polignac number, because 397313065 - 2³ = 397313057 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 39731302 + ... + 39731311.

It is an arithmetic number, because the mean of its divisors is an integer number (119193921).

Almost surely, 2^397313065 is an apocalyptic number.

It is an amenable number.

397313065 is a deficient number, since it is larger than the sum of its proper divisors (79462619).

397313065 is an equidigital number, since it uses as much as digits as its factorization.

397313065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79462618.

The product of its (nonzero) digits is 51030, while the sum is 37.

The square root of 397313065 is about 19932.7134379642. The cubic root of 397313065 is about 735.1527996142.

The spelling of 397313065 in words is "three hundred ninety-seven million, three hundred thirteen thousand, sixty-five".