13844857 has 4 divisors (see below), whose sum is σ = 14909860. Its totient is φ = 12779856.

The previous prime is 13844849. The next prime is 13844867. The reversal of 13844857 is 75844831.

13844857 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It can be written as a sum of positive squares in 2 ways, for example, as 1142761 + 12702096 = 1069^2 + 3564^2 .

It is a cyclic number.

It is not a de Polignac number, because 13844857 - 2³ = 13844849 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13844867) 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, 532482 + ... + 532507.

It is an arithmetic number, because the mean of its divisors is an integer number (3727465).

Almost surely, 2^13844857 is an apocalyptic number.

It is an amenable number.

13844857 is a deficient number, since it is larger than the sum of its proper divisors (1065003).

13844857 is a wasteful number, since it uses less digits than its factorization.

13844857 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1065002.

The product of its digits is 107520, while the sum is 40.

The square root of 13844857 is about 3720.8677751299. The cubic root of 13844857 is about 240.1206395800.

It can be divided in two parts, 1384 and 4857, that added together give a square (6241 = 79²).

The spelling of 13844857 in words is "thirteen million, eight hundred forty-four thousand, eight hundred fifty-seven".