13885491 has 16 divisors (see below), whose sum is σ = 19641600. Its totient is φ = 8706720.

The previous prime is 13885483. The next prime is 13885493. The reversal of 13885491 is 19458831.

13885491 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 13885491 - 2³ = 13885483 is a prime.

It is a super-2 number, since 2×13885491² = 385613720622162, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (13885493) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2560 + ... + 5858.

It is an arithmetic number, because the mean of its divisors is an integer number (1227600).

Almost surely, 2^13885491 is an apocalyptic number.

13885491 is a deficient number, since it is larger than the sum of its proper divisors (5756109).

13885491 is a wasteful number, since it uses less digits than its factorization.

13885491 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3386.

The product of its digits is 34560, while the sum is 39.

The square root of 13885491 is about 3726.3240599819. The cubic root of 13885491 is about 240.3553243706.

The spelling of 13885491 in words is "thirteen million, eight hundred eighty-five thousand, four hundred ninety-one".