14985891 has 20 divisors (see below), whose sum is σ = 23705352. Its totient is φ = 9402048.

The previous prime is 14985881. The next prime is 14985911. The reversal of 14985891 is 19858941.

14985891 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 14985891 - 2⁶ = 14985827 is a prime.

It is not an unprimeable number, because it can be changed into a prime (14985881) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 4065 + ... + 6818.

Almost surely, 2^14985891 is an apocalyptic number.

14985891 is a deficient number, since it is larger than the sum of its proper divisors (8719461).

14985891 is a wasteful number, since it uses less digits than its factorization.

14985891 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10912 (or 10903 counting only the distinct ones).

The product of its digits is 103680, while the sum is 45.

The square root of 14985891 is about 3871.1614536209. The cubic root of 14985891 is about 246.5438592075.

It can be divided in two parts, 14985 and 891, that added together give a square (15876 = 126²).

The spelling of 14985891 in words is "fourteen million, nine hundred eighty-five thousand, eight hundred ninety-one".