16724479 has 4 divisors (see below), whose sum is σ = 16752376. Its totient is φ = 16696584.

The previous prime is 16724471. The next prime is 16724483. The reversal of 16724479 is 97442761.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 97442761 = 13 ⋅7495597.

It is a cyclic number.

It is not a de Polignac number, because 16724479 - 2³ = 16724471 is a prime.

It is a Duffinian number.

It is a zygodrome in base 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16724471) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13029 + ... + 14254.

It is an arithmetic number, because the mean of its divisors is an integer number (4188094).

Almost surely, 2^16724479 is an apocalyptic number.

16724479 is a deficient number, since it is larger than the sum of its proper divisors (27897).

16724479 is an equidigital number, since it uses as much as digits as its factorization.

16724479 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27896.

The product of its digits is 84672, while the sum is 40.

The square root of 16724479 is about 4089.5573110057. The cubic root of 16724479 is about 255.7314842021.

The spelling of 16724479 in words is "sixteen million, seven hundred twenty-four thousand, four hundred seventy-nine".