464399813 has 2 divisors, whose sum is σ = 464399814. Its totient is φ = 464399812.

The previous prime is 464399801. The next prime is 464399827. The reversal of 464399813 is 318993464.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 308599489 + 155800324 = 17567^2 + 12482^2 .

It is a cyclic number.

It is not a de Polignac number, because 464399813 - 2¹⁰ = 464398789 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (464399213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 232199906 + 232199907.

It is an arithmetic number, because the mean of its divisors is an integer number (232199907).

Almost surely, 2^464399813 is an apocalyptic number.

It is an amenable number.

464399813 is a deficient number, since it is larger than the sum of its proper divisors (1).

464399813 is an equidigital number, since it uses as much as digits as its factorization.

464399813 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 559872, while the sum is 47.

The square root of 464399813 is about 21549.9376565224. The cubic root of 464399813 is about 774.3976244621.

The spelling of 464399813 in words is "four hundred sixty-four million, three hundred ninety-nine thousand, eight hundred thirteen".