68749884 has 60 divisors (see below), whose sum is σ = 205407664. Its totient is φ = 19642176.

The previous prime is 68749883. The next prime is 68749903. The reversal of 68749884 is 48894786.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a self number, because there is not a number n which added to its sum of digits gives 68749884.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68749883) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 12889 + ... + 17424.

Almost surely, 2^68749884 is an apocalyptic number.

It is an amenable number.

68749884 is an abundant number, since it is smaller than the sum of its proper divisors (136657780).

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

68749884 is a wasteful number, since it uses less digits than its factorization.

68749884 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30336 (or 30325 counting only the distinct ones).

The product of its digits is 3096576, while the sum is 54.

The square root of 68749884 is about 8291.5549808224. The cubic root of 68749884 is about 409.6604048971.

The spelling of 68749884 in words is "sixty-eight million, seven hundred forty-nine thousand, eight hundred eighty-four".