68762879 has 2 divisors, whose sum is σ = 68762880. Its totient is φ = 68762878.

The previous prime is 68762851. The next prime is 68762899. The reversal of 68762879 is 97826786.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 68762879 - 2⁸ = 68762623 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 68762879.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (68762809) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34381439 + 34381440.

It is an arithmetic number, because the mean of its divisors is an integer number (34381440).

Almost surely, 2^68762879 is an apocalyptic number.

68762879 is a deficient number, since it is larger than the sum of its proper divisors (1).

68762879 is an equidigital number, since it uses as much as digits as its factorization.

68762879 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2032128, while the sum is 53.

The square root of 68762879 is about 8292.3385724414. The cubic root of 68762879 is about 409.6862144029.

The spelling of 68762879 in words is "sixty-eight million, seven hundred sixty-two thousand, eight hundred seventy-nine".