813822463 has 2 divisors, whose sum is σ = 813822464. Its totient is φ = 813822462.

The previous prime is 813822461. The next prime is 813822479. The reversal of 813822463 is 364228318.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 813822463 - 2¹ = 813822461 is a prime.

Together with 813822461, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (813822461) 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, 406911231 + 406911232.

It is an arithmetic number, because the mean of its divisors is an integer number (406911232).

Almost surely, 2^813822463 is an apocalyptic number.

813822463 is a deficient number, since it is larger than the sum of its proper divisors (1).

813822463 is an equidigital number, since it uses as much as digits as its factorization.

813822463 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 55296, while the sum is 37.

The square root of 813822463 is about 28527.5737313919. The cubic root of 813822463 is about 933.6337822547.

It can be divided in two parts, 81382 and 2463, that added together give a triangular number (83845 = T₄₀₉).

The spelling of 813822463 in words is "eight hundred thirteen million, eight hundred twenty-two thousand, four hundred sixty-three".