13895819 has 8 divisors (see below), whose sum is σ = 15948768. Its totient is φ = 11859840.

The previous prime is 13895797. The next prime is 13895881. The reversal of 13895819 is 91859831.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 13895819 - 2¹⁶ = 13830283 is a prime.

It is a super-2 number, since 2×13895819² = 386187571361522, which contains 22 as substring.

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 13895819.

It is not an unprimeable number, because it can be changed into a prime (13895899) 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, 2432 + ... + 5805.

It is an arithmetic number, because the mean of its divisors is an integer number (1993596).

Almost surely, 2^13895819 is an apocalyptic number.

13895819 is a deficient number, since it is larger than the sum of its proper divisors (2052949).

13895819 is an equidigital number, since it uses as much as digits as its factorization.

13895819 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8485.

The product of its digits is 77760, while the sum is 44.

The square root of 13895819 is about 3727.7096185191. The cubic root of 13895819 is about 240.4149015360.

The spelling of 13895819 in words is "thirteen million, eight hundred ninety-five thousand, eight hundred nineteen".