68739312 has 40 divisors (see below), whose sum is σ = 178131456. Its totient is φ = 22841536.

The previous prime is 68739311. The next prime is 68739317. The reversal of 68739312 is 21393786.

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 congruent number.

It is not an unprimeable number, because it can be changed into a prime (68739311) 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, 14593 + ... + 18719.

Almost surely, 2^68739312 is an apocalyptic number.

It is an amenable number.

68739312 is an abundant number, since it is smaller than the sum of its proper divisors (109392144).

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

68739312 is a wasteful number, since it uses less digits than its factorization.

68739312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4485 (or 4479 counting only the distinct ones).

The product of its digits is 54432, while the sum is 39.

The square root of 68739312 is about 8290.9174401872. The cubic root of 68739312 is about 409.6394053377.

The spelling of 68739312 in words is "sixty-eight million, seven hundred thirty-nine thousand, three hundred twelve".