823044479 has 2 divisors, whose sum is σ = 823044480. Its totient is φ = 823044478.

The previous prime is 823044463. The next prime is 823044487. The reversal of 823044479 is 974440328.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 823044479 - 2⁴ = 823044463 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (823044179) 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, 411522239 + 411522240.

It is an arithmetic number, because the mean of its divisors is an integer number (411522240).

Almost surely, 2^823044479 is an apocalyptic number.

823044479 is a deficient number, since it is larger than the sum of its proper divisors (1).

823044479 is an equidigital number, since it uses as much as digits as its factorization.

823044479 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 193536, while the sum is 41.

The square root of 823044479 is about 28688.7517853252. The cubic root of 823044479 is about 937.1471066236.

The spelling of 823044479 in words is "eight hundred twenty-three million, forty-four thousand, four hundred seventy-nine".