8753021 has 2 divisors, whose sum is σ = 8753022. Its totient is φ = 8753020.

The previous prime is 8752993. The next prime is 8753023. The reversal of 8753021 is 1203578.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4708900 + 4044121 = 2170^2 + 2011^2 .

It is a cyclic number.

It is not a de Polignac number, because 8753021 - 2¹⁸ = 8490877 is a prime.

Together with 8753023, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8753023) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4376510 + 4376511.

It is an arithmetic number, because the mean of its divisors is an integer number (4376511).

Almost surely, 2^8753021 is an apocalyptic number.

It is an amenable number.

8753021 is a deficient number, since it is larger than the sum of its proper divisors (1).

8753021 is an equidigital number, since it uses as much as digits as its factorization.

8753021 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1680, while the sum is 26.

The square root of 8753021 is about 2958.5504896824. The cubic root of 8753021 is about 206.0879773148.

Adding to 8753021 its reverse (1203578), we get a palindrome (9956599).

The spelling of 8753021 in words is "eight million, seven hundred fifty-three thousand, twenty-one".