13915856 has 20 divisors (see below), whose sum is σ = 27072672. Its totient is φ = 6929376.

The previous prime is 13915849. The next prime is 13915859. The reversal of 13915856 is 65851931.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13915859) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 2555 + ... + 5861.

Almost surely, 2^13915856 is an apocalyptic number.

13915856 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

13915856 is a deficient number, since it is larger than the sum of its proper divisors (13156816).

13915856 is a wasteful number, since it uses less digits than its factorization.

13915856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3578 (or 3572 counting only the distinct ones).

The product of its digits is 32400, while the sum is 38.

The square root of 13915856 is about 3730.3962256039. The cubic root of 13915856 is about 240.5304010220.

The spelling of 13915856 in words is "thirteen million, nine hundred fifteen thousand, eight hundred fifty-six".