68913624 has 32 divisors (see below), whose sum is σ = 185537520. Its totient is φ = 21204096.

The previous prime is 68913623. The next prime is 68913641. The reversal of 68913624 is 42631986.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68913623) 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, 110127 + ... + 110750.

Almost surely, 2^68913624 is an apocalyptic number.

It is an amenable number.

68913624 is an abundant number, since it is smaller than the sum of its proper divisors (116623896).

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

68913624 is a wasteful number, since it uses less digits than its factorization.

68913624 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 220899 (or 220895 counting only the distinct ones).

The product of its digits is 62208, while the sum is 39.

The square root of 68913624 is about 8301.4230105446. The cubic root of 68913624 is about 409.9853732636.

The spelling of 68913624 in words is "sixty-eight million, nine hundred thirteen thousand, six hundred twenty-four".