823346497 has 2 divisors, whose sum is σ = 823346498. Its totient is φ = 823346496.

The previous prime is 823346473. The next prime is 823346519. The reversal of 823346497 is 794643328.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 820192321 + 3154176 = 28639^2 + 1776^2 .

It is a cyclic number.

It is not a de Polignac number, because 823346497 - 2⁷ = 823346369 is a prime.

It is not a weakly prime, because it can be changed into another prime (823346197) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 411673248 + 411673249.

It is an arithmetic number, because the mean of its divisors is an integer number (411673249).

Almost surely, 2^823346497 is an apocalyptic number.

It is an amenable number.

823346497 is a deficient number, since it is larger than the sum of its proper divisors (1).

823346497 is an equidigital number, since it uses as much as digits as its factorization.

823346497 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 870912, while the sum is 46.

The square root of 823346497 is about 28694.0150031326. The cubic root of 823346497 is about 937.2617220096.

It can be divided in two parts, 82334 and 6497, that added together give a triangular number (88831 = T₄₂₁).

The spelling of 823346497 in words is "eight hundred twenty-three million, three hundred forty-six thousand, four hundred ninety-seven".