68899975 has 24 divisors (see below), whose sum is σ = 88387200. Its totient is φ = 53245920.

The previous prime is 68899931. The next prime is 68899991. The reversal of 68899975 is 57999886.

It is not a de Polignac number, because 68899975 - 2⁷ = 68899847 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 114726 + ... + 115324.

It is an arithmetic number, because the mean of its divisors is an integer number (3682800).

Almost surely, 2^68899975 is an apocalyptic number.

68899975 is a deficient number, since it is larger than the sum of its proper divisors (19487225).

68899975 is a wasteful number, since it uses less digits than its factorization.

68899975 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 759 (or 754 counting only the distinct ones).

The product of its digits is 9797760, while the sum is 61.

The square root of 68899975 is about 8300.6008818639. The cubic root of 68899975 is about 409.9583043063.

The spelling of 68899975 in words is "sixty-eight million, eight hundred ninety-nine thousand, nine hundred seventy-five".