68697975 has 12 divisors (see below), whose sum is σ = 113580776. Its totient is φ = 36638880.

The previous prime is 68697971. The next prime is 68697991. The reversal of 68697975 is 57979686.

It is not a de Polignac number, because 68697975 - 2² = 68697971 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68697971) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 457912 + ... + 458061.

Almost surely, 2^68697975 is an apocalyptic number.

68697975 is a deficient number, since it is larger than the sum of its proper divisors (44882801).

68697975 is a wasteful number, since it uses less digits than its factorization.

68697975 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 915986 (or 915981 counting only the distinct ones).

The product of its digits is 5715360, while the sum is 57.

The square root of 68697975 is about 8288.4241566175. The cubic root of 68697975 is about 409.5572754324.

The spelling of 68697975 in words is "sixty-eight million, six hundred ninety-seven thousand, nine hundred seventy-five".