316721264 has 10 divisors (see below), whose sum is σ = 613647480. Its totient is φ = 158360624.

The previous prime is 316721239. The next prime is 316721287. The reversal of 316721264 is 462127613.

It is a self number, because there is not a number n which added to its sum of digits gives 316721264.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9897524 + ... + 9897555.

It is an arithmetic number, because the mean of its divisors is an integer number (61364748).

Almost surely, 2^316721264 is an apocalyptic number.

It is an amenable number.

316721264 is a deficient number, since it is larger than the sum of its proper divisors (296926216).

316721264 is a wasteful number, since it uses less digits than its factorization.

316721264 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19795087 (or 19795081 counting only the distinct ones).

The product of its digits is 12096, while the sum is 32.

The square root of 316721264 is about 17796.6644065679. The cubic root of 316721264 is about 681.6462879179.

Adding to 316721264 its reverse (462127613), we get a palindrome (778848877).

The spelling of 316721264 in words is "three hundred sixteen million, seven hundred twenty-one thousand, two hundred sixty-four".