13828615 has 8 divisors (see below), whose sum is σ = 16649568. Its totient is φ = 11026080.

The previous prime is 13828583. The next prime is 13828631. The reversal of 13828615 is 51682831.

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

It is not a de Polignac number, because 13828615 - 2⁵ = 13828583 is a prime.

It is a super-3 number, since 3×13828615³ (a number of 22 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2892 + ... + 6001.

It is an arithmetic number, because the mean of its divisors is an integer number (2081196).

Almost surely, 2^13828615 is an apocalyptic number.

13828615 is a deficient number, since it is larger than the sum of its proper divisors (2820953).

13828615 is an equidigital number, since it uses as much as digits as its factorization.

13828615 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9209.

The product of its digits is 11520, while the sum is 34.

The square root of 13828615 is about 3718.6845792565. The cubic root of 13828615 is about 240.0267042045.

The spelling of 13828615 in words is "thirteen million, eight hundred twenty-eight thousand, six hundred fifteen".