68964979 has 2 divisors, whose sum is σ = 68964980. Its totient is φ = 68964978.

The previous prime is 68964947. The next prime is 68965033. The reversal of 68964979 is 97946986.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 68964979 - 2⁵ = 68964947 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (68964079) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34482489 + 34482490.

It is an arithmetic number, because the mean of its divisors is an integer number (34482490).

Almost surely, 2^68964979 is an apocalyptic number.

68964979 is a deficient number, since it is larger than the sum of its proper divisors (1).

68964979 is an equidigital number, since it uses as much as digits as its factorization.

68964979 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5878656, while the sum is 58.

The square root of 68964979 is about 8304.5155788884. The cubic root of 68964979 is about 410.0871894683.

The spelling of 68964979 in words is "sixty-eight million, nine hundred sixty-four thousand, nine hundred seventy-nine".