868598677 has 2 divisors, whose sum is σ = 868598678. Its totient is φ = 868598676.

The previous prime is 868598639. The next prime is 868598683. The reversal of 868598677 is 776895868.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 866183761 + 2414916 = 29431^2 + 1554^2 .

It is a cyclic number.

It is not a de Polignac number, because 868598677 - 2²³ = 860210069 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (868598377) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 434299338 + 434299339.

It is an arithmetic number, because the mean of its divisors is an integer number (434299339).

Almost surely, 2^868598677 is an apocalyptic number.

It is an amenable number.

868598677 is a deficient number, since it is larger than the sum of its proper divisors (1).

868598677 is an equidigital number, since it uses as much as digits as its factorization.

868598677 is an evil number, because the sum of its binary digits is even.

The product of its digits is 40642560, while the sum is 64.

The square root of 868598677 is about 29471.9981847176. The cubic root of 868598677 is about 954.1274440157.

The spelling of 868598677 in words is "eight hundred sixty-eight million, five hundred ninety-eight thousand, six hundred seventy-seven".