13873915 has 8 divisors (see below), whose sum is σ = 18162288. Its totient is φ = 10090080.

The previous prime is 13873913. The next prime is 13873931. The reversal of 13873915 is 51937831.

It is a happy number.

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

It is not a de Polignac number, because 13873915 - 2¹ = 13873913 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13873913) 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, 126072 + ... + 126181.

It is an arithmetic number, because the mean of its divisors is an integer number (2270286).

Almost surely, 2^13873915 is an apocalyptic number.

13873915 is a deficient number, since it is larger than the sum of its proper divisors (4288373).

13873915 is a wasteful number, since it uses less digits than its factorization.

13873915 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 252269.

The product of its digits is 22680, while the sum is 37.

The square root of 13873915 is about 3724.7704627265. The cubic root of 13873915 is about 240.2885129825.

The spelling of 13873915 in words is "thirteen million, eight hundred seventy-three thousand, nine hundred fifteen".