13892491 has 4 divisors (see below), whose sum is σ = 13901184. Its totient is φ = 13883800.

The previous prime is 13892467. The next prime is 13892513. The reversal of 13892491 is 19429831.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 19429831 = 557 ⋅34883.

It is a cyclic number.

It is not a de Polignac number, because 13892491 - 2⁹ = 13891979 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 13892491.

It is not an unprimeable number, because it can be changed into a prime (13892441) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1180 + ... + 5401.

It is an arithmetic number, because the mean of its divisors is an integer number (3475296).

Almost surely, 2^13892491 is an apocalyptic number.

13892491 is a deficient number, since it is larger than the sum of its proper divisors (8693).

13892491 is an equidigital number, since it uses as much as digits as its factorization.

13892491 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8692.

The product of its digits is 15552, while the sum is 37.

The square root of 13892491 is about 3727.2632050876. The cubic root of 13892491 is about 240.3957071611.

It can be divided in two parts, 138 and 92491, that added together give a palindrome (92629).

The spelling of 13892491 in words is "thirteen million, eight hundred ninety-two thousand, four hundred ninety-one".