68975817 has 16 divisors (see below), whose sum is σ = 99755712. Its totient is φ = 42222080.

The previous prime is 68975773. The next prime is 68975821. The reversal of 68975817 is 71857986.

It is a cyclic number.

It is not a de Polignac number, because 68975817 - 2¹⁴ = 68959433 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is a self number, because there is not a number n which added to its sum of digits gives 68975817.

It is not an unprimeable number, because it can be changed into a prime (68975857) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14403 + ... + 18584.

It is an arithmetic number, because the mean of its divisors is an integer number (6234732).

Almost surely, 2^68975817 is an apocalyptic number.

It is an amenable number.

68975817 is a deficient number, since it is larger than the sum of its proper divisors (30779895).

68975817 is a wasteful number, since it uses less digits than its factorization.

68975817 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33048.

The product of its digits is 846720, while the sum is 51.

The square root of 68975817 is about 8305.1680898101. The cubic root of 68975817 is about 410.1086703814.

The spelling of 68975817 in words is "sixty-eight million, nine hundred seventy-five thousand, eight hundred seventeen".