13636479 has 8 divisors (see below), whose sum is σ = 18358912. Its totient is φ = 9002520.

The previous prime is 13636463. The next prime is 13636517. The reversal of 13636479 is 97463631.

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

It is not a de Polignac number, because 13636479 - 2⁴ = 13636463 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13636429) 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, 21757 + ... + 22374.

It is an arithmetic number, because the mean of its divisors is an integer number (2294864).

Almost surely, 2^13636479 is an apocalyptic number.

13636479 is a deficient number, since it is larger than the sum of its proper divisors (4722433).

13636479 is a wasteful number, since it uses less digits than its factorization.

13636479 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44237.

The product of its digits is 81648, while the sum is 39.

The square root of 13636479 is about 3692.7603496572. The cubic root of 13636479 is about 238.9098648809.

The spelling of 13636479 in words is "thirteen million, six hundred thirty-six thousand, four hundred seventy-nine".