24047021 has 2 divisors, whose sum is σ = 24047022. Its totient is φ = 24047020.

The previous prime is 24046991. The next prime is 24047053. The reversal of 24047021 is 12074042.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 18576100 + 5470921 = 4310^2 + 2339^2 .

It is a cyclic number.

It is not a de Polignac number, because 24047021 - 2¹⁰ = 24045997 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 24046984 and 24047002.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (24047921) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12023510 + 12023511.

It is an arithmetic number, because the mean of its divisors is an integer number (12023511).

Almost surely, 2^24047021 is an apocalyptic number.

It is an amenable number.

24047021 is a deficient number, since it is larger than the sum of its proper divisors (1).

24047021 is an equidigital number, since it uses as much as digits as its factorization.

24047021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 448, while the sum is 20.

The square root of 24047021 is about 4903.7761979927. The cubic root of 24047021 is about 288.6381689965.

The spelling of 24047021 in words is "twenty-four million, forty-seven thousand, twenty-one".