13724573 has 4 divisors (see below), whose sum is σ = 13949628. Its totient is φ = 13499520.

The previous prime is 13724549. The next prime is 13724597. The reversal of 13724573 is 37542731.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 37542731 = 1697 ⋅22123.

It is an interprime number because it is at equal distance from previous prime (13724549) and next prime (13724597).

It can be written as a sum of positive squares in 2 ways, for example, as 6744409 + 6980164 = 2597^2 + 2642^2 .

It is a cyclic number.

It is not a de Polignac number, because 13724573 - 2¹² = 13720477 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13724533) 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, 112436 + ... + 112557.

It is an arithmetic number, because the mean of its divisors is an integer number (3487407).

Almost surely, 2^13724573 is an apocalyptic number.

It is an amenable number.

13724573 is a deficient number, since it is larger than the sum of its proper divisors (225055).

13724573 is an equidigital number, since it uses as much as digits as its factorization.

13724573 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 225054.

The product of its digits is 17640, while the sum is 32.

The square root of 13724573 is about 3704.6690810381. The cubic root of 13724573 is about 239.4232272673.

The spelling of 13724573 in words is "thirteen million, seven hundred twenty-four thousand, five hundred seventy-three".