13889419 has 4 divisors (see below), whose sum is σ = 14027040. Its totient is φ = 13751800.

The previous prime is 13889417. The next prime is 13889423. The reversal of 13889419 is 91498831.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 91498831 = 6689 ⋅13679.

It is a cyclic number.

It is not a de Polignac number, because 13889419 - 2¹ = 13889417 is a prime.

It is a super-2 number, since 2×13889419² = 385831920315122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13889411) 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, 68659 + ... + 68860.

It is an arithmetic number, because the mean of its divisors is an integer number (3506760).

Almost surely, 2^13889419 is an apocalyptic number.

13889419 is a deficient number, since it is larger than the sum of its proper divisors (137621).

13889419 is a wasteful number, since it uses less digits than its factorization.

13889419 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 137620.

The product of its digits is 62208, while the sum is 43.

The square root of 13889419 is about 3726.8510836898. The cubic root of 13889419 is about 240.3779865557.

The spelling of 13889419 in words is "thirteen million, eight hundred eighty-nine thousand, four hundred nineteen".