13900008 has 32 divisors (see below), whose sum is σ = 35560800. Its totient is φ = 4525248.

The previous prime is 13899989. The next prime is 13900013. The reversal of 13900008 is 80000931.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5703 + ... + 7766.

It is an arithmetic number, because the mean of its divisors is an integer number (1111275).

Almost surely, 2^13900008 is an apocalyptic number.

It is an amenable number.

13900008 is an abundant number, since it is smaller than the sum of its proper divisors (21660792).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13900008 is a wasteful number, since it uses less digits than its factorization.

13900008 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13521 (or 13517 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 21.

The square root of 13900008 is about 3728.2714493449. The cubic root of 13900008 is about 240.4390574071.

Adding to 13900008 its reverse (80000931), we get a palindrome (93900939).

The spelling of 13900008 in words is "thirteen million, nine hundred thousand, eight".