316620401 has 4 divisors (see below), whose sum is σ = 316739904. Its totient is φ = 316500900.

The previous prime is 316620371. The next prime is 316620407. The reversal of 316620401 is 104026613.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-316620401 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (316620407) 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, 55685 + ... + 61106.

It is an arithmetic number, because the mean of its divisors is an integer number (79184976).

Almost surely, 2^316620401 is an apocalyptic number.

It is an amenable number.

316620401 is a deficient number, since it is larger than the sum of its proper divisors (119503).

316620401 is a wasteful number, since it uses less digits than its factorization.

316620401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 119502.

The product of its (nonzero) digits is 864, while the sum is 23.

The square root of 316620401 is about 17793.8304195583. The cubic root of 316620401 is about 681.5739212484.

The spelling of 316620401 in words is "three hundred sixteen million, six hundred twenty thousand, four hundred one".