13890847 has 8 divisors (see below), whose sum is σ = 14141952. Its totient is φ = 13642200.

The previous prime is 13890839. The next prime is 13890907. The reversal of 13890847 is 74809831.

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

It is a cyclic number.

It is not a de Polignac number, because 13890847 - 2³ = 13890839 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13890817) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13522 + ... + 14512.

It is an arithmetic number, because the mean of its divisors is an integer number (1767744).

Almost surely, 2^13890847 is an apocalyptic number.

13890847 is a deficient number, since it is larger than the sum of its proper divisors (251105).

13890847 is a wasteful number, since it uses less digits than its factorization.

13890847 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1229.

The product of its (nonzero) digits is 48384, while the sum is 40.

The square root of 13890847 is about 3727.0426614140. The cubic root of 13890847 is about 240.3862241934.

The spelling of 13890847 in words is "thirteen million, eight hundred ninety thousand, eight hundred forty-seven".