452421917 has 2 divisors, whose sum is σ = 452421918. Its totient is φ = 452421916.

The previous prime is 452421911. The next prime is 452421919. The reversal of 452421917 is 719124254.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 449906521 + 2515396 = 21211^2 + 1586^2 .

It is a cyclic number.

It is not a de Polignac number, because 452421917 - 2¹⁴ = 452405533 is a prime.

Together with 452421919, 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 (452421911) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 226210958 + 226210959.

It is an arithmetic number, because the mean of its divisors is an integer number (226210959).

Almost surely, 2^452421917 is an apocalyptic number.

It is an amenable number.

452421917 is a deficient number, since it is larger than the sum of its proper divisors (1).

452421917 is an equidigital number, since it uses as much as digits as its factorization.

452421917 is an evil number, because the sum of its binary digits is even.

The product of its digits is 20160, while the sum is 35.

The square root of 452421917 is about 21270.2119641531. The cubic root of 452421917 is about 767.6817421607.

The spelling of 452421917 in words is "four hundred fifty-two million, four hundred twenty-one thousand, nine hundred seventeen".