68644316 has 24 divisors (see below), whose sum is σ = 130312560. Its totient is φ = 31450752.

The previous prime is 68644313. The next prime is 68644319. The reversal of 68644316 is 61344686.

It is an interprime number because it is at equal distance from previous prime (68644313) and next prime (68644319).

It is a self number, because there is not a number n which added to its sum of digits gives 68644316.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68644313) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2480 + ... + 11976.

It is an arithmetic number, because the mean of its divisors is an integer number (5429690).

Almost surely, 2^68644316 is an apocalyptic number.

It is an amenable number.

68644316 is a deficient number, since it is larger than the sum of its proper divisors (61668244).

68644316 is a wasteful number, since it uses less digits than its factorization.

68644316 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9653 (or 9651 counting only the distinct ones).

The product of its digits is 82944, while the sum is 38.

The square root of 68644316 is about 8285.1865398433. The cubic root of 68644316 is about 409.4506145585.

The spelling of 68644316 in words is "sixty-eight million, six hundred forty-four thousand, three hundred sixteen".