68812759 has 2 divisors, whose sum is σ = 68812760. Its totient is φ = 68812758.

The previous prime is 68812741. The next prime is 68812763. The reversal of 68812759 is 95721886.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 68812759 - 2⁷ = 68812631 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (68812729) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34406379 + 34406380.

It is an arithmetic number, because the mean of its divisors is an integer number (34406380).

Almost surely, 2^68812759 is an apocalyptic number.

68812759 is a deficient number, since it is larger than the sum of its proper divisors (1).

68812759 is an equidigital number, since it uses as much as digits as its factorization.

68812759 is an evil number, because the sum of its binary digits is even.

The product of its digits is 241920, while the sum is 46.

The square root of 68812759 is about 8295.3456226971. The cubic root of 68812759 is about 409.7852514100.

The spelling of 68812759 in words is "sixty-eight million, eight hundred twelve thousand, seven hundred fifty-nine".