13928085 has 16 divisors (see below), whose sum is σ = 24761280. Its totient is φ = 7428240.

The previous prime is 13928077. The next prime is 13928111. The reversal of 13928085 is 58082931.

It is not a de Polignac number, because 13928085 - 2³ = 13928077 is a prime.

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 15 ways as a sum of consecutive naturals, for example, 51451 + ... + 51720.

It is an arithmetic number, because the mean of its divisors is an integer number (1547580).

Almost surely, 2^13928085 is an apocalyptic number.

13928085 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

13928085 is a deficient number, since it is larger than the sum of its proper divisors (10833195).

13928085 is a wasteful number, since it uses less digits than its factorization.

13928085 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 103185 (or 103179 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 36.

The square root of 13928085 is about 3732.0349676818. The cubic root of 13928085 is about 240.6008383003.

It can be divided in two parts, 139 and 28085, that added together give a square (28224 = 168²).

The spelling of 13928085 in words is "thirteen million, nine hundred twenty-eight thousand, eighty-five".