68915964 has 48 divisors (see below), whose sum is σ = 182295680. Its totient is φ = 20088000.

The previous prime is 68915933. The next prime is 68915969. The reversal of 68915964 is 46951986.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68915969) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8662 + ... + 14589.

Almost surely, 2^68915964 is an apocalyptic number.

It is an amenable number.

68915964 is an abundant number, since it is smaller than the sum of its proper divisors (113379716).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

68915964 is a wasteful number, since it uses less digits than its factorization.

68915964 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23290 (or 23288 counting only the distinct ones).

The product of its digits is 466560, while the sum is 48.

The square root of 68915964 is about 8301.5639490400. The cubic root of 68915964 is about 409.9900136374.

It can be divided in two parts, 689 and 15964, that added together give a triangular number (16653 = T₁₈₂).

The spelling of 68915964 in words is "sixty-eight million, nine hundred fifteen thousand, nine hundred sixty-four".