13685437 has 8 divisors (see below), whose sum is σ = 14359104. Its totient is φ = 13018368.

The previous prime is 13685423. The next prime is 13685461. The reversal of 13685437 is 73458631.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 13685437 - 2¹⁵ = 13652669 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13685396 and 13685405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13685417) 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, 2898 + ... + 5980.

It is an arithmetic number, because the mean of its divisors is an integer number (1794888).

Almost surely, 2^13685437 is an apocalyptic number.

It is an amenable number.

13685437 is a deficient number, since it is larger than the sum of its proper divisors (673667).

13685437 is a wasteful number, since it uses less digits than its factorization.

13685437 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3299.

The product of its digits is 60480, while the sum is 37.

The square root of 13685437 is about 3699.3833269884. The cubic root of 13685437 is about 239.1954366251.

The spelling of 13685437 in words is "thirteen million, six hundred eighty-five thousand, four hundred thirty-seven".