68698865 has 16 divisors (see below), whose sum is σ = 84334608. Its totient is φ = 53703936.

The previous prime is 68698849. The next prime is 68698873. The reversal of 68698865 is 56889686.

It can be written as a sum of positive squares in 8 ways, for example, as 7921 + 68690944 = 89^2 + 8288^2 .

It is a cyclic number.

It is not a de Polignac number, because 68698865 - 2⁴ = 68698849 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 68698865.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 104879 + ... + 105531.

It is an arithmetic number, because the mean of its divisors is an integer number (5270913).

Almost surely, 2^68698865 is an apocalyptic number.

It is an amenable number.

68698865 is a deficient number, since it is larger than the sum of its proper divisors (15635743).

68698865 is a wasteful number, since it uses less digits than its factorization.

68698865 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1108.

The product of its digits is 4976640, while the sum is 56.

The square root of 68698865 is about 8288.4778457809. The cubic root of 68698865 is about 409.5590440649.

The spelling of 68698865 in words is "sixty-eight million, six hundred ninety-eight thousand, eight hundred sixty-five".