108277861 has 2 divisors, whose sum is σ = 108277862. Its totient is φ = 108277860.

The previous prime is 108277837. The next prime is 108277927. The reversal of 108277861 is 168772801.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 77264100 + 31013761 = 8790^2 + 5569^2 .

It is a cyclic number.

It is not a de Polignac number, because 108277861 - 2¹⁷ = 108146789 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (108277061) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 54138930 + 54138931.

It is an arithmetic number, because the mean of its divisors is an integer number (54138931).

Almost surely, 2^108277861 is an apocalyptic number.

It is an amenable number.

108277861 is a deficient number, since it is larger than the sum of its proper divisors (1).

108277861 is an equidigital number, since it uses as much as digits as its factorization.

108277861 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 37632, while the sum is 40.

The square root of 108277861 is about 10405.6648514163. The cubic root of 108277861 is about 476.6283703292.

The spelling of 108277861 in words is "one hundred eight million, two hundred seventy-seven thousand, eight hundred sixty-one".