445477723 has 2 divisors, whose sum is σ = 445477724. Its totient is φ = 445477722.

The previous prime is 445477709. The next prime is 445477733. The reversal of 445477723 is 327774544.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-445477723 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 445477723.

It is not a weakly prime, because it can be changed into another prime (445477733) 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, 222738861 + 222738862.

It is an arithmetic number, because the mean of its divisors is an integer number (222738862).

Almost surely, 2^445477723 is an apocalyptic number.

445477723 is a deficient number, since it is larger than the sum of its proper divisors (1).

445477723 is an equidigital number, since it uses as much as digits as its factorization.

445477723 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 658560, while the sum is 43.

The square root of 445477723 is about 21106.3431934573. The cubic root of 445477723 is about 763.7337749854.

The spelling of 445477723 in words is "four hundred forty-five million, four hundred seventy-seven thousand, seven hundred twenty-three".