464519813 has 2 divisors, whose sum is σ = 464519814. Its totient is φ = 464519812.

The previous prime is 464519749. The next prime is 464519821. The reversal of 464519813 is 318915464.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 444071329 + 20448484 = 21073^2 + 4522^2 .

It is a cyclic number.

It is not a de Polignac number, because 464519813 - 2⁶ = 464519749 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (464513813) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 232259906 + 232259907.

It is an arithmetic number, because the mean of its divisors is an integer number (232259907).

Almost surely, 2^464519813 is an apocalyptic number.

It is an amenable number.

464519813 is a deficient number, since it is larger than the sum of its proper divisors (1).

464519813 is an equidigital number, since it uses as much as digits as its factorization.

464519813 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 103680, while the sum is 41.

The square root of 464519813 is about 21552.7217074782. The cubic root of 464519813 is about 774.4643196598.

The spelling of 464519813 in words is "four hundred sixty-four million, five hundred nineteen thousand, eight hundred thirteen".