68735784 has 32 divisors (see below), whose sum is σ = 185058720. Its totient is φ = 21149376.

The previous prime is 68735783. The next prime is 68735789. The reversal of 68735784 is 48753786.

It is not an unprimeable number, because it can be changed into a prime (68735783) 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, 109842 + ... + 110465.

It is an arithmetic number, because the mean of its divisors is an integer number (5783085).

Almost surely, 2^68735784 is an apocalyptic number.

It is an amenable number.

68735784 is an abundant number, since it is smaller than the sum of its proper divisors (116322936).

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

68735784 is a wasteful number, since it uses less digits than its factorization.

68735784 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 220329 (or 220325 counting only the distinct ones).

The product of its digits is 1128960, while the sum is 48.

The square root of 68735784 is about 8290.7046745135. The cubic root of 68735784 is about 409.6323970601.

The spelling of 68735784 in words is "sixty-eight million, seven hundred thirty-five thousand, seven hundred eighty-four".