68820075 has 18 divisors (see below), whose sum is σ = 123264804. Its totient is φ = 36703920.

The previous prime is 68820053. The next prime is 68820077. The reversal of 68820075 is 57002886.

It is not a de Polignac number, because 68820075 - 2⁵ = 68820043 is a prime.

It is not an unprimeable number, because it can be changed into a prime (68820077) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 152709 + ... + 153158.

Almost surely, 2^68820075 is an apocalyptic number.

68820075 is a deficient number, since it is larger than the sum of its proper divisors (54444729).

68820075 is a wasteful number, since it uses less digits than its factorization.

68820075 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 305883 (or 305875 counting only the distinct ones).

The product of its (nonzero) digits is 26880, while the sum is 36.

The square root of 68820075 is about 8295.7865811507. The cubic root of 68820075 is about 409.7997733422.

The spelling of 68820075 in words is "sixty-eight million, eight hundred twenty thousand, seventy-five".