452802821 has 2 divisors, whose sum is σ = 452802822. Its totient is φ = 452802820.

The previous prime is 452802787. The next prime is 452802827. The reversal of 452802821 is 128208254.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 438064900 + 14737921 = 20930^2 + 3839^2 .

It is a cyclic number.

It is not a de Polignac number, because 452802821 - 2¹⁴ = 452786437 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (452802827) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 226401410 + 226401411.

It is an arithmetic number, because the mean of its divisors is an integer number (226401411).

Almost surely, 2^452802821 is an apocalyptic number.

It is an amenable number.

452802821 is a deficient number, since it is larger than the sum of its proper divisors (1).

452802821 is an equidigital number, since it uses as much as digits as its factorization.

452802821 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10240, while the sum is 32.

The square root of 452802821 is about 21279.1640108346. The cubic root of 452802821 is about 767.8971244625.

The spelling of 452802821 in words is "four hundred fifty-two million, eight hundred two thousand, eight hundred twenty-one".