13891413 has 8 divisors (see below), whose sum is σ = 19496800. Its totient is φ = 8773488.

The previous prime is 13891399. The next prime is 13891433. The reversal of 13891413 is 31419831.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 13891413 - 2²¹ = 11794261 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13891433) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 121798 + ... + 121911.

It is an arithmetic number, because the mean of its divisors is an integer number (2437100).

Almost surely, 2^13891413 is an apocalyptic number.

It is an amenable number.

13891413 is a deficient number, since it is larger than the sum of its proper divisors (5605387).

13891413 is a wasteful number, since it uses less digits than its factorization.

13891413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 243731.

The product of its digits is 2592, while the sum is 30.

The square root of 13891413 is about 3727.1185921567. The cubic root of 13891413 is about 240.3894890952.

The spelling of 13891413 in words is "thirteen million, eight hundred ninety-one thousand, four hundred thirteen".