13890886 has 8 divisors (see below), whose sum is σ = 21100320. Its totient is φ = 6857448.

The previous prime is 13890839. The next prime is 13890907. The reversal of 13890886 is 68809831.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 43801 + ... + 44116.

It is an arithmetic number, because the mean of its divisors is an integer number (2637540).

Almost surely, 2^13890886 is an apocalyptic number.

13890886 is a deficient number, since it is larger than the sum of its proper divisors (7209434).

13890886 is an equidigital number, since it uses as much as digits as its factorization.

13890886 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87998.

The product of its (nonzero) digits is 82944, while the sum is 43.

The square root of 13890886 is about 3727.0478934406. The cubic root of 13890886 is about 240.3864491630.

The spelling of 13890886 in words is "thirteen million, eight hundred ninety thousand, eight hundred eighty-six".