68979259 has 4 divisors (see below), whose sum is σ = 69028960. Its totient is φ = 68929560.

The previous prime is 68979257. The next prime is 68979271. The reversal of 68979259 is 95297986.

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 68979259 - 2¹ = 68979257 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (68979257) 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, 22707 + ... + 25564.

It is an arithmetic number, because the mean of its divisors is an integer number (17257240).

Almost surely, 2^68979259 is an apocalyptic number.

68979259 is a deficient number, since it is larger than the sum of its proper divisors (49701).

68979259 is a wasteful number, since it uses less digits than its factorization.

68979259 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49700.

The product of its digits is 2449440, while the sum is 55.

The square root of 68979259 is about 8305.3753075945. The cubic root of 68979259 is about 410.1154919537.

The spelling of 68979259 in words is "sixty-eight million, nine hundred seventy-nine thousand, two hundred fifty-nine".