24972117 has 4 divisors (see below), whose sum is σ = 33296160. Its totient is φ = 16648076.

The previous prime is 24972109. The next prime is 24972131. The reversal of 24972117 is 71127942.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 24972117 - 2³ = 24972109 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (24972107) 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, 4162017 + ... + 4162022.

It is an arithmetic number, because the mean of its divisors is an integer number (8324040).

Almost surely, 2^24972117 is an apocalyptic number.

It is an amenable number.

24972117 is a deficient number, since it is larger than the sum of its proper divisors (8324043).

24972117 is an equidigital number, since it uses as much as digits as its factorization.

24972117 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8324042.

The product of its digits is 7056, while the sum is 33.

The square root of 24972117 is about 4997.2109221044. The cubic root of 24972117 is about 292.2930261997.

The spelling of 24972117 in words is "twenty-four million, nine hundred seventy-two thousand, one hundred seventeen".