814463813 has 2 divisors, whose sum is σ = 814463814. Its totient is φ = 814463812.

The previous prime is 814463807. The next prime is 814463911. The reversal of 814463813 is 318364418.

814463813 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 521985409 + 292478404 = 22847^2 + 17102^2 .

It is a cyclic number.

It is not a de Polignac number, because 814463813 - 2¹⁴ = 814447429 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (814463803) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 407231906 + 407231907.

It is an arithmetic number, because the mean of its divisors is an integer number (407231907).

Almost surely, 2^814463813 is an apocalyptic number.

It is an amenable number.

814463813 is a deficient number, since it is larger than the sum of its proper divisors (1).

814463813 is an equidigital number, since it uses as much as digits as its factorization.

814463813 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 55296, while the sum is 38.

The square root of 814463813 is about 28538.8123964541. The cubic root of 814463813 is about 933.8789744708.

The spelling of 814463813 in words is "eight hundred fourteen million, four hundred sixty-three thousand, eight hundred thirteen".