16724413 has 4 divisors (see below), whose sum is σ = 17708220. Its totient is φ = 15740608.

The previous prime is 16724399. The next prime is 16724423. The reversal of 16724413 is 31442761.

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 11168964 + 5555449 = 3342^2 + 2357^2 .

It is a cyclic number.

It is not a de Polignac number, because 16724413 - 2¹³ = 16716221 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16724423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 491878 + ... + 491911.

It is an arithmetic number, because the mean of its divisors is an integer number (4427055).

Almost surely, 2^16724413 is an apocalyptic number.

It is an amenable number.

16724413 is a deficient number, since it is larger than the sum of its proper divisors (983807).

16724413 is an equidigital number, since it uses as much as digits as its factorization.

16724413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 983806.

The product of its digits is 4032, while the sum is 28.

The square root of 16724413 is about 4089.5492416647. The cubic root of 16724413 is about 255.7311478029.

The spelling of 16724413 in words is "sixteen million, seven hundred twenty-four thousand, four hundred thirteen".