13809702 has 32 divisors (see below), whose sum is σ = 28717920. Its totient is φ = 4423680.

The previous prime is 13809673. The next prime is 13809707. The reversal of 13809702 is 20790831.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 13809702.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13809707) 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 15 ways as a sum of consecutive naturals, for example, 17574 + ... + 18342.

It is an arithmetic number, because the mean of its divisors is an integer number (897435).

Almost surely, 2^13809702 is an apocalyptic number.

13809702 is an abundant number, since it is smaller than the sum of its proper divisors (14908218).

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

13809702 is a wasteful number, since it uses less digits than its factorization.

13809702 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 888.

The product of its (nonzero) digits is 3024, while the sum is 30.

The square root of 13809702 is about 3716.1407400689. The cubic root of 13809702 is about 239.9172284013.

The spelling of 13809702 in words is "thirteen million, eight hundred nine thousand, seven hundred two".