464565389 has 2 divisors, whose sum is σ = 464565390. Its totient is φ = 464565388.

The previous prime is 464565347. The next prime is 464565401. The reversal of 464565389 is 983565464.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 267584164 + 196981225 = 16358^2 + 14035^2 .

It is a cyclic number.

It is not a de Polignac number, because 464565389 - 2²⁰ = 463516813 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 (464565889) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 232282694 + 232282695.

It is an arithmetic number, because the mean of its divisors is an integer number (232282695).

Almost surely, 2^464565389 is an apocalyptic number.

It is an amenable number.

464565389 is a deficient number, since it is larger than the sum of its proper divisors (1).

464565389 is an equidigital number, since it uses as much as digits as its factorization.

464565389 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3110400, while the sum is 50.

The square root of 464565389 is about 21553.7789958049. The cubic root of 464565389 is about 774.4896474862.

The spelling of 464565389 in words is "four hundred sixty-four million, five hundred sixty-five thousand, three hundred eighty-nine".