14013891 has 20 divisors (see below), whose sum is σ = 21613504. Its totient is φ = 9039600.

The previous prime is 14013869. The next prime is 14013893. The reversal of 14013891 is 19831041.

It is not a de Polignac number, because 14013891 - 2⁵ = 14013859 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (14013893) 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, 280 + ... + 5301.

Almost surely, 2^14013891 is an apocalyptic number.

14013891 is a deficient number, since it is larger than the sum of its proper divisors (7599613).

14013891 is an equidigital number, since it uses as much as digits as its factorization.

14013891 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5624 (or 5615 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 27.

The square root of 14013891 is about 3743.5131895053. The cubic root of 14013891 is about 241.0939126542.

The spelling of 14013891 in words is "fourteen million, thirteen thousand, eight hundred ninety-one".