68707504 has 20 divisors (see below), whose sum is σ = 135634176. Its totient is φ = 33705152.

The previous prime is 68707453. The next prime is 68707511. The reversal of 68707504 is 40570786.

It is a happy number.

It is a super-2 number, since 2×68707504² = 9441442211820032, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 39664 + ... + 41359.

Almost surely, 2^68707504 is an apocalyptic number.

It is an amenable number.

68707504 is a deficient number, since it is larger than the sum of its proper divisors (66926672).

68707504 is a wasteful number, since it uses less digits than its factorization.

68707504 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81084 (or 81078 counting only the distinct ones).

The product of its (nonzero) digits is 47040, while the sum is 37.

The square root of 68707504 is about 8288.9989745445. The cubic root of 68707504 is about 409.5762109292.

The spelling of 68707504 in words is "sixty-eight million, seven hundred seven thousand, five hundred four".