68979293 has 2 divisors, whose sum is σ = 68979294. Its totient is φ = 68979292.

The previous prime is 68979289. The next prime is 68979299. The reversal of 68979293 is 39297986.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 37920964 + 31058329 = 6158^2 + 5573^2 .

It is a cyclic number.

It is not a de Polignac number, because 68979293 - 2² = 68979289 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (68979299) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34489646 + 34489647.

It is an arithmetic number, because the mean of its divisors is an integer number (34489647).

Almost surely, 2^68979293 is an apocalyptic number.

It is an amenable number.

68979293 is a deficient number, since it is larger than the sum of its proper divisors (1).

68979293 is an equidigital number, since it uses as much as digits as its factorization.

68979293 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1469664, while the sum is 53.

The square root of 68979293 is about 8305.3773544614. The cubic root of 68979293 is about 410.1155593359.

The spelling of 68979293 in words is "sixty-eight million, nine hundred seventy-nine thousand, two hundred ninety-three".