13890877 has 16 divisors (see below), whose sum is σ = 18652032. Its totient is φ = 9990720.

The previous prime is 13890839. The next prime is 13890907. The reversal of 13890877 is 77809831.

It is a cyclic number.

It is not a de Polignac number, because 13890877 - 2⁷ = 13890749 is a prime.

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 15 ways as a sum of consecutive naturals, for example, 5938 + ... + 7939.

It is an arithmetic number, because the mean of its divisors is an integer number (1165752).

Almost surely, 2^13890877 is an apocalyptic number.

It is an amenable number.

13890877 is a deficient number, since it is larger than the sum of its proper divisors (4761155).

13890877 is a wasteful number, since it uses less digits than its factorization.

13890877 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13908.

The product of its (nonzero) digits is 84672, while the sum is 43.

The square root of 13890877 is about 3727.0466860505. The cubic root of 13890877 is about 240.3863972469.

The spelling of 13890877 in words is "thirteen million, eight hundred ninety thousand, eight hundred seventy-seven".