454220857 has 2 divisors, whose sum is σ = 454220858. Its totient is φ = 454220856.

The previous prime is 454220839. The next prime is 454220863. The reversal of 454220857 is 758022454.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 453008656 + 1212201 = 21284^2 + 1101^2 .

It is a cyclic number.

It is not a de Polignac number, because 454220857 - 2¹⁵ = 454188089 is a prime.

It is not a weakly prime, because it can be changed into another prime (454220827) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 227110428 + 227110429.

It is an arithmetic number, because the mean of its divisors is an integer number (227110429).

Almost surely, 2^454220857 is an apocalyptic number.

It is an amenable number.

454220857 is a deficient number, since it is larger than the sum of its proper divisors (1).

454220857 is an equidigital number, since it uses as much as digits as its factorization.

454220857 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 89600, while the sum is 37.

The square root of 454220857 is about 21312.4577888145. The cubic root of 454220857 is about 768.6978932052.

The spelling of 454220857 in words is "four hundred fifty-four million, two hundred twenty thousand, eight hundred fifty-seven".