445279 has 2 divisors, whose sum is σ = 445280. Its totient is φ = 445278.

The previous prime is 445271. The next prime is 445283. The reversal of 445279 is 972544.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 445279 - 2³ = 445271 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 445279.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (445271) 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, 222639 + 222640.

It is an arithmetic number, because the mean of its divisors is an integer number (222640).

2⁴⁴⁵²⁷⁹ is an apocalyptic number.

445279 is a deficient number, since it is larger than the sum of its proper divisors (1).

445279 is an equidigital number, since it uses as much as digits as its factorization.

445279 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 10080, while the sum is 31.

The square root of 445279 is about 667.2922897801. The cubic root of 445279 is about 76.3620193518.

The spelling of 445279 in words is "four hundred forty-five thousand, two hundred seventy-nine".