13826661 has 24 divisors (see below), whose sum is σ = 20628864. Its totient is φ = 8208000.

The previous prime is 13826653. The next prime is 13826663. The reversal of 13826661 is 16662831.

13826661 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 13826661 - 2³ = 13826653 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13826663) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 18036 + ... + 18786.

It is an arithmetic number, because the mean of its divisors is an integer number (859536).

Almost surely, 2^13826661 is an apocalyptic number.

It is an amenable number.

13826661 is a deficient number, since it is larger than the sum of its proper divisors (6802203).

13826661 is a wasteful number, since it uses less digits than its factorization.

13826661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 809 (or 790 counting only the distinct ones).

The product of its digits is 10368, while the sum is 33.

The square root of 13826661 is about 3718.4218426639. The cubic root of 13826661 is about 240.0153983176.

The spelling of 13826661 in words is "thirteen million, eight hundred twenty-six thousand, six hundred sixty-one".