13569808 has 40 divisors (see below), whose sum is σ = 31819392. Its totient is φ = 5472768.

The previous prime is 13569799. The next prime is 13569817. The reversal of 13569808 is 80896531.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (13569799) and next prime (13569817).

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors.

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, 1660 + ... + 5467.

Almost surely, 2^13569808 is an apocalyptic number.

It is an amenable number.

13569808 is an abundant number, since it is smaller than the sum of its proper divisors (18249584).

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

13569808 is a wasteful number, since it uses less digits than its factorization.

13569808 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7159 (or 7153 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 40.

The square root of 13569808 is about 3683.7220307727. The cubic root of 13569808 is about 238.5198720013.

The spelling of 13569808 in words is "thirteen million, five hundred sixty-nine thousand, eight hundred eight".