13724453 has 4 divisors (see below), whose sum is σ = 14197740. Its totient is φ = 13251168.

The previous prime is 13724449. The next prime is 13724461. The reversal of 13724453 is 35442731.

It is a happy number.

13724453 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 6315169 + 7409284 = 2513^2 + 2722^2 .

It is a cyclic number.

It is not a de Polignac number, because 13724453 - 2² = 13724449 is a prime.

It is a super-2 number, since 2×13724453² = 376721220298418, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (29), and also a Moran number because the ratio is a prime number: 473257 = 13724453 / (1 + 3 + 7 + 2 + 4 + 4 + 5 + 3).

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13724483) 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, 236600 + ... + 236657.

It is an arithmetic number, because the mean of its divisors is an integer number (3549435).

Almost surely, 2^13724453 is an apocalyptic number.

It is an amenable number.

13724453 is a deficient number, since it is larger than the sum of its proper divisors (473287).

13724453 is an equidigital number, since it uses as much as digits as its factorization.

13724453 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 473286.

The product of its digits is 10080, while the sum is 29.

The square root of 13724453 is about 3704.6528852242. The cubic root of 13724453 is about 239.4225294709.

The spelling of 13724453 in words is "thirteen million, seven hundred twenty-four thousand, four hundred fifty-three".