316646401 has 4 divisors (see below), whose sum is σ = 317209392. Its totient is φ = 316083412.

The previous prime is 316646387. The next prime is 316646441. The reversal of 316646401 is 104646613.

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-316646401 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (316646441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 280651 + ... + 281776.

It is an arithmetic number, because the mean of its divisors is an integer number (79302348).

Almost surely, 2^316646401 is an apocalyptic number.

It is an amenable number.

316646401 is a deficient number, since it is larger than the sum of its proper divisors (562991).

316646401 is an equidigital number, since it uses as much as digits as its factorization.

316646401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 562990.

The product of its (nonzero) digits is 10368, while the sum is 31.

The square root of 316646401 is about 17794.5609948658. The cubic root of 316646401 is about 681.5925770655.

The spelling of 316646401 in words is "three hundred sixteen million, six hundred forty-six thousand, four hundred one".