445942823 has 2 divisors, whose sum is σ = 445942824. Its totient is φ = 445942822.

The previous prime is 445942813. The next prime is 445942829. The reversal of 445942823 is 328249544.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 445942823 - 2⁴ = 445942807 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (445942829) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 222971411 + 222971412.

It is an arithmetic number, because the mean of its divisors is an integer number (222971412).

Almost surely, 2^445942823 is an apocalyptic number.

445942823 is a deficient number, since it is larger than the sum of its proper divisors (1).

445942823 is an equidigital number, since it uses as much as digits as its factorization.

445942823 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 276480, while the sum is 41.

The square root of 445942823 is about 21117.3583338447. The cubic root of 445942823 is about 763.9994740409. Note that the first 3 decimals are identical.

The spelling of 445942823 in words is "four hundred forty-five million, nine hundred forty-two thousand, eight hundred twenty-three".