817219483 has 2 divisors, whose sum is σ = 817219484. Its totient is φ = 817219482.

The previous prime is 817219433. The next prime is 817219493. The reversal of 817219483 is 384912718.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-817219483 is a prime.

It is not a weakly prime, because it can be changed into another prime (817219433) 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, 408609741 + 408609742.

It is an arithmetic number, because the mean of its divisors is an integer number (408609742).

Almost surely, 2^817219483 is an apocalyptic number.

817219483 is a deficient number, since it is larger than the sum of its proper divisors (1).

817219483 is an equidigital number, since it uses as much as digits as its factorization.

817219483 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 96768, while the sum is 43.

The square root of 817219483 is about 28587.0509671774. The cubic root of 817219483 is about 934.9310225836.

It can be divided in two parts, 81721 and 9483, that added together give a square (91204 = 302²).

The spelling of 817219483 in words is "eight hundred seventeen million, two hundred nineteen thousand, four hundred eighty-three".