823044407 has 2 divisors, whose sum is σ = 823044408. Its totient is φ = 823044406.

The previous prime is 823044377. The next prime is 823044421. The reversal of 823044407 is 704440328.

823044407 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-823044407 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (823044457) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 411522203 + 411522204.

It is an arithmetic number, because the mean of its divisors is an integer number (411522204).

Almost surely, 2^823044407 is an apocalyptic number.

823044407 is a deficient number, since it is larger than the sum of its proper divisors (1).

823044407 is an equidigital number, since it uses as much as digits as its factorization.

823044407 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 21504, while the sum is 32.

The square root of 823044407 is about 28688.7505304780. The cubic root of 823044407 is about 937.1470792964.

The spelling of 823044407 in words is "eight hundred twenty-three million, forty-four thousand, four hundred seven".