68872522 has 16 divisors (see below), whose sum is σ = 105363720. Its totient is φ = 33758208.

The previous prime is 68872519. The next prime is 68872543. The reversal of 68872522 is 22527886.

It can be written as a sum of positive squares in 4 ways, for example, as 67914081 + 958441 = 8241^2 + 979^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19518 + ... + 22774.

Almost surely, 2^68872522 is an apocalyptic number.

68872522 is a deficient number, since it is larger than the sum of its proper divisors (36491198).

68872522 is a wasteful number, since it uses less digits than its factorization.

68872522 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3465.

The product of its digits is 107520, while the sum is 40.

The square root of 68872522 is about 8298.9470416433. The cubic root of 68872522 is about 409.9038481644.

It can be divided in two parts, 6887 and 2522, that added together give a square (9409 = 97²).

The spelling of 68872522 in words is "sixty-eight million, eight hundred seventy-two thousand, five hundred twenty-two".