68907079 has 4 divisors (see below), whose sum is σ = 71129920. Its totient is φ = 66684240.

The previous prime is 68907077. The next prime is 68907121. The reversal of 68907079 is 97070986.

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 68907079 - 2¹ = 68907077 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 (68907073) 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, 1111374 + ... + 1111435.

It is an arithmetic number, because the mean of its divisors is an integer number (17782480).

Almost surely, 2^68907079 is an apocalyptic number.

68907079 is a deficient number, since it is larger than the sum of its proper divisors (2222841).

68907079 is a wasteful number, since it uses less digits than its factorization.

68907079 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2222840.

The product of its (nonzero) digits is 190512, while the sum is 46.

The square root of 68907079 is about 8301.0287916619. The cubic root of 68907079 is about 409.9723935408.

The spelling of 68907079 in words is "sixty-eight million, nine hundred seven thousand, seventy-nine".