13736321 has 4 divisors (see below), whose sum is σ = 13969200. Its totient is φ = 13503444.

The previous prime is 13736309. The next prime is 13736329. The reversal of 13736321 is 12363731.

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 13736321 - 2¹⁸ = 13474177 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13736329) 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, 116351 + ... + 116468.

It is an arithmetic number, because the mean of its divisors is an integer number (3492300).

Almost surely, 2^13736321 is an apocalyptic number.

It is an amenable number.

13736321 is a deficient number, since it is larger than the sum of its proper divisors (232879).

13736321 is an equidigital number, since it uses as much as digits as its factorization.

13736321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 232878.

The product of its digits is 2268, while the sum is 26.

The square root of 13736321 is about 3706.2543085978. The cubic root of 13736321 is about 239.4915218486.

The spelling of 13736321 in words is "thirteen million, seven hundred thirty-six thousand, three hundred twenty-one".