13907889 has 16 divisors (see below), whose sum is σ = 20995200. Its totient is φ = 9096048.

The previous prime is 13907863. The next prime is 13907899. The reversal of 13907889 is 98870931.

It is not a de Polignac number, because 13907889 - 2¹¹ = 13905841 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13907899) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3429 + ... + 6290.

It is an arithmetic number, because the mean of its divisors is an integer number (1312200).

Almost surely, 2^13907889 is an apocalyptic number.

It is an amenable number.

13907889 is a deficient number, since it is larger than the sum of its proper divisors (7087311).

13907889 is an equidigital number, since it uses as much as digits as its factorization.

13907889 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9781 (or 9775 counting only the distinct ones).

The product of its (nonzero) digits is 108864, while the sum is 45.

The square root of 13907889 is about 3729.3282236886. The cubic root of 13907889 is about 240.4844900477.

The spelling of 13907889 in words is "thirteen million, nine hundred seven thousand, eight hundred eighty-nine".