108868657 has 2 divisors, whose sum is σ = 108868658. Its totient is φ = 108868656.

The previous prime is 108868633. The next prime is 108868679. The reversal of 108868657 is 756868801.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 105596176 + 3272481 = 10276^2 + 1809^2 .

It is a cyclic number.

It is not a de Polignac number, because 108868657 - 2¹⁵ = 108835889 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 108868657.

It is not a weakly prime, because it can be changed into another prime (108868687) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 54434328 + 54434329.

It is an arithmetic number, because the mean of its divisors is an integer number (54434329).

Almost surely, 2^108868657 is an apocalyptic number.

It is an amenable number.

108868657 is a deficient number, since it is larger than the sum of its proper divisors (1).

108868657 is an equidigital number, since it uses as much as digits as its factorization.

108868657 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 645120, while the sum is 49.

The square root of 108868657 is about 10434.0144239885. The cubic root of 108868657 is about 477.4936735180.

The spelling of 108868657 in words is "one hundred eight million, eight hundred sixty-eight thousand, six hundred fifty-seven".