456423389 has 2 divisors, whose sum is σ = 456423390. Its totient is φ = 456423388.

The previous prime is 456423281. The next prime is 456423419. The reversal of 456423389 is 983324654.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 438190489 + 18232900 = 20933^2 + 4270^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-456423389 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 (456423589) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 228211694 + 228211695.

It is an arithmetic number, because the mean of its divisors is an integer number (228211695).

Almost surely, 2^456423389 is an apocalyptic number.

It is an amenable number.

456423389 is a deficient number, since it is larger than the sum of its proper divisors (1).

456423389 is an equidigital number, since it uses as much as digits as its factorization.

456423389 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 622080, while the sum is 44.

The square root of 456423389 is about 21364.0677072509. The cubic root of 456423389 is about 769.9383708475.

The spelling of 456423389 in words is "four hundred fifty-six million, four hundred twenty-three thousand, three hundred eighty-nine".