13688590 has 16 divisors (see below), whose sum is σ = 25058160. Its totient is φ = 5382400.

The previous prime is 13688573. The next prime is 13688593. The reversal of 13688590 is 9588631.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13688593) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11011 + ... + 12190.

It is an arithmetic number, because the mean of its divisors is an integer number (1566135).

Almost surely, 2^13688590 is an apocalyptic number.

13688590 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13688590 is a deficient number, since it is larger than the sum of its proper divisors (11369570).

13688590 is a wasteful number, since it uses less digits than its factorization.

13688590 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23267.

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

The square root of 13688590 is about 3699.8094545530. The cubic root of 13688590 is about 239.2138046976.

The spelling of 13688590 in words is "thirteen million, six hundred eighty-eight thousand, five hundred ninety".