68855079 has 4 divisors (see below), whose sum is σ = 91806776. Its totient is φ = 45903384.

The previous prime is 68855071. The next prime is 68855099. The reversal of 68855079 is 97055886.

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

It is not a de Polignac number, because 68855079 - 2³ = 68855071 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 (68855071) 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, 11475844 + ... + 11475849.

It is an arithmetic number, because the mean of its divisors is an integer number (22951694).

Almost surely, 2^68855079 is an apocalyptic number.

68855079 is a deficient number, since it is larger than the sum of its proper divisors (22951697).

68855079 is a wasteful number, since it uses less digits than its factorization.

68855079 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22951696.

The product of its (nonzero) digits is 604800, while the sum is 48.

The square root of 68855079 is about 8297.8960586404. The cubic root of 68855079 is about 409.8692404752.

The spelling of 68855079 in words is "sixty-eight million, eight hundred fifty-five thousand, seventy-nine".