68922079 has 4 divisors (see below), whose sum is σ = 69037360. Its totient is φ = 68806800.

The previous prime is 68922071. The next prime is 68922127. The reversal of 68922079 is 97022986.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 68922079 - 2³ = 68922071 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 (68922071) 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, 56739 + ... + 57940.

It is an arithmetic number, because the mean of its divisors is an integer number (17259340).

Almost surely, 2^68922079 is an apocalyptic number.

68922079 is a deficient number, since it is larger than the sum of its proper divisors (115281).

68922079 is a wasteful number, since it uses less digits than its factorization.

68922079 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115280.

The product of its (nonzero) digits is 108864, while the sum is 43.

The square root of 68922079 is about 8301.9322449656. The cubic root of 68922079 is about 410.0021395883.

The spelling of 68922079 in words is "sixty-eight million, nine hundred twenty-two thousand, seventy-nine".