21848753 has 2 divisors, whose sum is σ = 21848754. Its totient is φ = 21848752.

The previous prime is 21848741. The next prime is 21848809. The reversal of 21848753 is 35784812.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 18722929 + 3125824 = 4327^2 + 1768^2 .

It is a cyclic number.

It is not a de Polignac number, because 21848753 - 2⁴ = 21848737 is a prime.

It is not a weakly prime, because it can be changed into another prime (21848053) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10924376 + 10924377.

It is an arithmetic number, because the mean of its divisors is an integer number (10924377).

Almost surely, 2^21848753 is an apocalyptic number.

It is an amenable number.

21848753 is a deficient number, since it is larger than the sum of its proper divisors (1).

21848753 is an equidigital number, since it uses as much as digits as its factorization.

21848753 is an evil number, because the sum of its binary digits is even.

The product of its digits is 53760, while the sum is 38.

The square root of 21848753 is about 4674.2649689550. The cubic root of 21848753 is about 279.5603346440.

The spelling of 21848753 in words is "twenty-one million, eight hundred forty-eight thousand, seven hundred fifty-three".