13894819 has 4 divisors (see below), whose sum is σ = 14017896. Its totient is φ = 13771744.

The previous prime is 13894817. The next prime is 13894861. The reversal of 13894819 is 91849831.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 13894819 - 2¹ = 13894817 is a prime.

It is a super-2 number, since 2×13894819² = 386131990085522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13894813) 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, 61369 + ... + 61594.

It is an arithmetic number, because the mean of its divisors is an integer number (3504474).

Almost surely, 2^13894819 is an apocalyptic number.

13894819 is a deficient number, since it is larger than the sum of its proper divisors (123077).

13894819 is a wasteful number, since it uses less digits than its factorization.

13894819 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 123076.

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

The square root of 13894819 is about 3727.5754854865. The cubic root of 13894819 is about 240.4091343176.

The spelling of 13894819 in words is "thirteen million, eight hundred ninety-four thousand, eight hundred nineteen".