445843423 has 2 divisors, whose sum is σ = 445843424. Its totient is φ = 445843422.

The previous prime is 445843351. The next prime is 445843501. The reversal of 445843423 is 324348544.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-445843423 is a prime.

It is equal to p_23644288 and since 445843423 and 23644288 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (445841423) 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, 222921711 + 222921712.

It is an arithmetic number, because the mean of its divisors is an integer number (222921712).

Almost surely, 2^445843423 is an apocalyptic number.

445843423 is a deficient number, since it is larger than the sum of its proper divisors (1).

445843423 is an equidigital number, since it uses as much as digits as its factorization.

445843423 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 184320, while the sum is 37.

The square root of 445843423 is about 21115.0046886095. The cubic root of 445843423 is about 763.9427050361.

The spelling of 445843423 in words is "four hundred forty-five million, eight hundred forty-three thousand, four hundred twenty-three".