13775859 has 8 divisors (see below), whose sum is σ = 20408720. Its totient is φ = 9183888.

The previous prime is 13775857. The next prime is 13775863. The reversal of 13775859 is 95857731.

It is not a de Polignac number, because 13775859 - 2¹ = 13775857 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13775857) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 255082 + ... + 255135.

It is an arithmetic number, because the mean of its divisors is an integer number (2551090).

Almost surely, 2^13775859 is an apocalyptic number.

13775859 is a deficient number, since it is larger than the sum of its proper divisors (6632861).

13775859 is an equidigital number, since it uses as much as digits as its factorization.

13775859 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 510226 (or 510220 counting only the distinct ones).

The product of its digits is 264600, while the sum is 45.

The square root of 13775859 is about 3711.5844325571. The cubic root of 13775859 is about 239.7210822292.

The spelling of 13775859 in words is "thirteen million, seven hundred seventy-five thousand, eight hundred fifty-nine".