68968986 has 16 divisors (see below), whose sum is σ = 142387968. Its totient is φ = 22248000.

The previous prime is 68968981. The next prime is 68968997. The reversal of 68968986 is 68986986.

It is not an unprimeable number, because it can be changed into a prime (68968981) 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, 185215 + ... + 185586.

It is an arithmetic number, because the mean of its divisors is an integer number (8899248).

Almost surely, 2^68968986 is an apocalyptic number.

68968986 is an abundant number, since it is smaller than the sum of its proper divisors (73418982).

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

68968986 is a wasteful number, since it uses less digits than its factorization.

68968986 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 370837.

The product of its digits is 8957952, while the sum is 60.

The square root of 68968986 is about 8304.7568296730. The cubic root of 68968986 is about 410.0951316034.

The spelling of 68968986 in words is "sixty-eight million, nine hundred sixty-eight thousand, nine hundred eighty-six".