316290697 has 4 divisors (see below), whose sum is σ = 322258500. Its totient is φ = 310322896.

The previous prime is 316290647. The next prime is 316290703. The reversal of 316290697 is 796092613.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 796092613 = 41 ⋅19416893.

It can be written as a sum of positive squares in 2 ways, for example, as 222278281 + 94012416 = 14909^2 + 9696^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-316290697 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (316290647) 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, 2983822 + ... + 2983927.

It is an arithmetic number, because the mean of its divisors is an integer number (80564625).

Almost surely, 2^316290697 is an apocalyptic number.

It is an amenable number.

316290697 is a deficient number, since it is larger than the sum of its proper divisors (5967803).

316290697 is an equidigital number, since it uses as much as digits as its factorization.

316290697 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5967802.

The product of its (nonzero) digits is 122472, while the sum is 43.

The square root of 316290697 is about 17784.5634469896. The cubic root of 316290697 is about 681.3372596248.

The spelling of 316290697 in words is "three hundred sixteen million, two hundred ninety thousand, six hundred ninety-seven".