13564479 has 16 divisors (see below), whose sum is σ = 18779904. Its totient is φ = 8702400.

The previous prime is 13564471. The next prime is 13564483. The reversal of 13564479 is 97446531.

It is not a de Polignac number, because 13564479 - 2³ = 13564471 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13564471) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8419 + ... + 9899.

It is an arithmetic number, because the mean of its divisors is an integer number (1173744).

Almost surely, 2^13564479 is an apocalyptic number.

13564479 is a deficient number, since it is larger than the sum of its proper divisors (5215425).

13564479 is a wasteful number, since it uses less digits than its factorization.

13564479 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1598.

The product of its digits is 90720, while the sum is 39.

The square root of 13564479 is about 3682.9986424108. The cubic root of 13564479 is about 238.4886448628.

The spelling of 13564479 in words is "thirteen million, five hundred sixty-four thousand, four hundred seventy-nine".