445339 has 2 divisors, whose sum is σ = 445340. Its totient is φ = 445338.

The previous prime is 445321. The next prime is 445363. The reversal of 445339 is 933544.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 445339 - 2⁵ = 445307 is a prime.

It is not a weakly prime, because it can be changed into another prime (440339) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 222669 + 222670.

It is an arithmetic number, because the mean of its divisors is an integer number (222670).

2⁴⁴⁵³³⁹ is an apocalyptic number.

445339 is a deficient number, since it is larger than the sum of its proper divisors (1).

445339 is an equidigital number, since it uses as much as digits as its factorization.

445339 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6480, while the sum is 28.

The square root of 445339 is about 667.3372460758. The cubic root of 445339 is about 76.3654490482.

It can be divided in two parts, 445 and 339, that added together give a square (784 = 28²).

The spelling of 445339 in words is "four hundred forty-five thousand, three hundred thirty-nine".