24980921 has 8 divisors (see below), whose sum is σ = 29791104. Its totient is φ = 20481120.

The previous prime is 24980911. The next prime is 24980927. The reversal of 24980921 is 12908942.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-24980921 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (24980927) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 77420 + ... + 77741.

It is an arithmetic number, because the mean of its divisors is an integer number (3723888).

Almost surely, 2^24980921 is an apocalyptic number.

It is an amenable number.

24980921 is a deficient number, since it is larger than the sum of its proper divisors (4810183).

24980921 is a wasteful number, since it uses less digits than its factorization.

24980921 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 155191.

The product of its (nonzero) digits is 10368, while the sum is 35.

The square root of 24980921 is about 4998.0917358528. The cubic root of 24980921 is about 292.3273717786.

The spelling of 24980921 in words is "twenty-four million, nine hundred eighty thousand, nine hundred twenty-one".