13838615 has 16 divisors (see below), whose sum is σ = 19061760. Its totient is φ = 9447840.

The previous prime is 13838609. The next prime is 13838621. The reversal of 13838615 is 51683831.

13838615 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (13838609) and next prime (13838621).

It is not a de Polignac number, because 13838615 - 2⁴ = 13838599 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8756 + ... + 10214.

It is an arithmetic number, because the mean of its divisors is an integer number (1191360).

Almost surely, 2^13838615 is an apocalyptic number.

13838615 is a deficient number, since it is larger than the sum of its proper divisors (5223145).

13838615 is a wasteful number, since it uses less digits than its factorization.

13838615 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1742.

The product of its digits is 17280, while the sum is 35.

The square root of 13838615 is about 3720.0288977372. The cubic root of 13838615 is about 240.0845477581.

The spelling of 13838615 in words is "thirteen million, eight hundred thirty-eight thousand, six hundred fifteen".