13685602 has 24 divisors (see below), whose sum is σ = 24219756. Its totient is φ = 5781888.

The previous prime is 13685587. The next prime is 13685611. The reversal of 13685602 is 20658631.

It can be written as a sum of positive squares in 2 ways, for example, as 12895281 + 790321 = 3591^2 + 889^2 .

It is a congruent number.

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 11 ways as a sum of consecutive naturals, for example, 6198 + ... + 8110.

Almost surely, 2^13685602 is an apocalyptic number.

13685602 is a deficient number, since it is larger than the sum of its proper divisors (10534154).

13685602 is a wasteful number, since it uses less digits than its factorization.

13685602 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2002 (or 1995 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 31.

The square root of 13685602 is about 3699.4056279354. The cubic root of 13685602 is about 239.1963979167.

The spelling of 13685602 in words is "thirteen million, six hundred eighty-five thousand, six hundred two".