13826857 has 16 divisors (see below), whose sum is σ = 15579072. Its totient is φ = 12165120.

The previous prime is 13826849. The next prime is 13826921. The reversal of 13826857 is 75862831.

It is not a de Polignac number, because 13826857 - 2³ = 13826849 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13826807) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 53673 + ... + 53929.

It is an arithmetic number, because the mean of its divisors is an integer number (973692).

Almost surely, 2^13826857 is an apocalyptic number.

It is an amenable number.

13826857 is a deficient number, since it is larger than the sum of its proper divisors (1752215).

13826857 is a wasteful number, since it uses less digits than its factorization.

13826857 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 408.

The product of its digits is 80640, while the sum is 40.

The square root of 13826857 is about 3718.4481978374. The cubic root of 13826857 is about 240.0165324260.

The spelling of 13826857 in words is "thirteen million, eight hundred twenty-six thousand, eight hundred fifty-seven".