13564797 has 4 divisors (see below), whose sum is σ = 18086400. Its totient is φ = 9043196.

The previous prime is 13564729. The next prime is 13564807. The reversal of 13564797 is 79746531.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 13564797 - 2⁷ = 13564669 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13564297) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2260797 + ... + 2260802.

It is an arithmetic number, because the mean of its divisors is an integer number (4521600).

Almost surely, 2^13564797 is an apocalyptic number.

It is an amenable number.

13564797 is a deficient number, since it is larger than the sum of its proper divisors (4521603).

13564797 is an equidigital number, since it uses as much as digits as its factorization.

13564797 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4521602.

The product of its digits is 158760, while the sum is 42.

The square root of 13564797 is about 3683.0418135014. The cubic root of 13564797 is about 238.4905085244.

The spelling of 13564797 in words is "thirteen million, five hundred sixty-four thousand, seven hundred ninety-seven".