68660859 has 4 divisors (see below), whose sum is σ = 91547816. Its totient is φ = 45773904.

The previous prime is 68660849. The next prime is 68660861. The reversal of 68660859 is 95806686.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 68660859 - 2⁷ = 68660731 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (68660849) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11443474 + ... + 11443479.

It is an arithmetic number, because the mean of its divisors is an integer number (22886954).

Almost surely, 2^68660859 is an apocalyptic number.

68660859 is a deficient number, since it is larger than the sum of its proper divisors (22886957).

68660859 is a wasteful number, since it uses less digits than its factorization.

68660859 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22886956.

The product of its (nonzero) digits is 622080, while the sum is 48.

The square root of 68660859 is about 8286.1848277721. The cubic root of 68660859 is about 409.4835038923.

The spelling of 68660859 in words is "sixty-eight million, six hundred sixty thousand, eight hundred fifty-nine".