68765677 has 2 divisors, whose sum is σ = 68765678. Its totient is φ = 68765676.

The previous prime is 68765659. The next prime is 68765681. The reversal of 68765677 is 77656786.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 47734281 + 21031396 = 6909^2 + 4586^2 .

It is a cyclic number.

It is not a de Polignac number, because 68765677 - 2²³ = 60377069 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (68768677) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34382838 + 34382839.

It is an arithmetic number, because the mean of its divisors is an integer number (34382839).

Almost surely, 2^68765677 is an apocalyptic number.

It is an amenable number.

68765677 is a deficient number, since it is larger than the sum of its proper divisors (1).

68765677 is an equidigital number, since it uses as much as digits as its factorization.

68765677 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2963520, while the sum is 52.

The square root of 68765677 is about 8292.5072806721. The cubic root of 68765677 is about 409.6917711146.

The spelling of 68765677 in words is "sixty-eight million, seven hundred sixty-five thousand, six hundred seventy-seven".