13928870 has 16 divisors (see below), whose sum is σ = 25120368. Its totient is φ = 5560800.

The previous prime is 13928867. The next prime is 13928891. The reversal of 13928870 is 7882931.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6017 + ... + 8003.

It is an arithmetic number, because the mean of its divisors is an integer number (1570023).

Almost surely, 2^13928870 is an apocalyptic number.

13928870 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13928870 is a deficient number, since it is larger than the sum of its proper divisors (11191498).

13928870 is a wasteful number, since it uses less digits than its factorization.

13928870 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2695.

The product of its (nonzero) digits is 24192, while the sum is 38.

The square root of 13928870 is about 3732.1401367044. The cubic root of 13928870 is about 240.6053583788.

The spelling of 13928870 in words is "thirteen million, nine hundred twenty-eight thousand, eight hundred seventy".