13693856 has 24 divisors (see below), whose sum is σ = 29411424. Its totient is φ = 6224320.

The previous prime is 13693853. The next prime is 13693859. The reversal of 13693856 is 65839631.

It is an interprime number because it is at equal distance from previous prime (13693853) and next prime (13693859).

It is not an unprimeable number, because it can be changed into a prime (13693853) 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, 19100 + ... + 19803.

It is an arithmetic number, because the mean of its divisors is an integer number (1225476).

Almost surely, 2^13693856 is an apocalyptic number.

13693856 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

13693856 is an abundant number, since it is smaller than the sum of its proper divisors (15717568).

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

13693856 is a wasteful number, since it uses less digits than its factorization.

13693856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38924 (or 38916 counting only the distinct ones).

The product of its digits is 116640, while the sum is 41.

The square root of 13693856 is about 3700.5210443936. The cubic root of 13693856 is about 239.2444759451.

It can be divided in two parts, 1369 and 3856, that added together give a palindrome (5225).

The spelling of 13693856 in words is "thirteen million, six hundred ninety-three thousand, eight hundred fifty-six".