13826859 has 4 divisors (see below), whose sum is σ = 18435816. Its totient is φ = 9217904.

The previous prime is 13826849. The next prime is 13826921. The reversal of 13826859 is 95862831.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 95862831 = 3 ⋅31954277.

It is a cyclic number.

It is not a de Polignac number, because 13826859 - 2⁴ = 13826843 is a prime.

It is a super-3 number, since 3×13826859³ (a number of 22 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 13826859.

It is not an unprimeable number, because it can be changed into a prime (13826849) 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, 2304474 + ... + 2304479.

It is an arithmetic number, because the mean of its divisors is an integer number (4608954).

Almost surely, 2^13826859 is an apocalyptic number.

13826859 is a deficient number, since it is larger than the sum of its proper divisors (4608957).

13826859 is an equidigital number, since it uses as much as digits as its factorization.

13826859 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4608956.

The product of its digits is 103680, while the sum is 42.

The square root of 13826859 is about 3718.4484667668. The cubic root of 13826859 is about 240.0165439984.

The spelling of 13826859 in words is "thirteen million, eight hundred twenty-six thousand, eight hundred fifty-nine".