24728001 has 4 divisors (see below), whose sum is σ = 32970672. Its totient is φ = 16485332.

The previous prime is 24727999. The next prime is 24728023. The reversal of 24728001 is 10082742.

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 24728001 - 2¹ = 24727999 is a prime.

It is a super-2 number, since 2×24728001² = 1222948066912002, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (24728071) 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, 4121331 + ... + 4121336.

It is an arithmetic number, because the mean of its divisors is an integer number (8242668).

Almost surely, 2^24728001 is an apocalyptic number.

It is an amenable number.

24728001 is a deficient number, since it is larger than the sum of its proper divisors (8242671).

24728001 is an equidigital number, since it uses as much as digits as its factorization.

24728001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8242670.

The product of its (nonzero) digits is 896, while the sum is 24.

The square root of 24728001 is about 4972.7257113177. The cubic root of 24728001 is about 291.3374646899.

The spelling of 24728001 in words is "twenty-four million, seven hundred twenty-eight thousand, one".