13564413 has 12 divisors (see below), whose sum is σ = 19667388. Its totient is φ = 9008640.

The previous prime is 13564409. The next prime is 13564427. The reversal of 13564413 is 31446531.

13564413 is a `hidden beast` number, since 1 + 3 + 5 + 644 + 13 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 5963364 + 7601049 = 2442^2 + 2757^2 .

It is not a de Polignac number, because 13564413 - 2² = 13564409 is a prime.

It is a super-3 number, since 3×13564413³ (a number of 22 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13564433) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 228 + ... + 5213.

It is an arithmetic number, because the mean of its divisors is an integer number (1638949).

Almost surely, 2^13564413 is an apocalyptic number.

It is an amenable number.

13564413 is a deficient number, since it is larger than the sum of its proper divisors (6102975).

13564413 is a wasteful number, since it uses less digits than its factorization.

13564413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5724 (or 5721 counting only the distinct ones).

The product of its digits is 4320, while the sum is 27.

The square root of 13564413 is about 3682.9896823097. The cubic root of 13564413 is about 238.4882580615.

The spelling of 13564413 in words is "thirteen million, five hundred sixty-four thousand, four hundred thirteen".