819382063 has 2 divisors, whose sum is σ = 819382064. Its totient is φ = 819382062.

The previous prime is 819382019. The next prime is 819382093. The reversal of 819382063 is 360283918.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-819382063 is a prime.

It is a super-2 number, since 2×819382063² = 1342773930332271938, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (819382093) 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, 409691031 + 409691032.

It is an arithmetic number, because the mean of its divisors is an integer number (409691032).

Almost surely, 2^819382063 is an apocalyptic number.

819382063 is a deficient number, since it is larger than the sum of its proper divisors (1).

819382063 is an equidigital number, since it uses as much as digits as its factorization.

819382063 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 62208, while the sum is 40.

The square root of 819382063 is about 28624.8504450242. The cubic root of 819382063 is about 935.7549882084.

The spelling of 819382063 in words is "eight hundred nineteen million, three hundred eighty-two thousand, sixty-three".