24720479 has 4 divisors (see below), whose sum is σ = 28251984. Its totient is φ = 21188976.

The previous prime is 24720473. The next prime is 24720497. The reversal of 24720479 is 97402742.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 24720479 - 2¹² = 24716383 is a prime.

It is a super-2 number, since 2×24720479² = 1222204163978882, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (24720473) 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, 1765742 + ... + 1765755.

It is an arithmetic number, because the mean of its divisors is an integer number (7062996).

Almost surely, 2^24720479 is an apocalyptic number.

24720479 is a deficient number, since it is larger than the sum of its proper divisors (3531505).

24720479 is an equidigital number, since it uses as much as digits as its factorization.

24720479 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3531504.

The product of its (nonzero) digits is 28224, while the sum is 35.

The square root of 24720479 is about 4971.9693281435. The cubic root of 24720479 is about 291.3079210880.

The spelling of 24720479 in words is "twenty-four million, seven hundred twenty thousand, four hundred seventy-nine".