445339793 has 2 divisors, whose sum is σ = 445339794. Its totient is φ = 445339792.

The previous prime is 445339789. The next prime is 445339819. The reversal of 445339793 is 397933544.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 440286289 + 5053504 = 20983^2 + 2248^2 .

It is a cyclic number.

It is not a de Polignac number, because 445339793 - 2² = 445339789 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (445339753) 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, 222669896 + 222669897.

It is an arithmetic number, because the mean of its divisors is an integer number (222669897).

Almost surely, 2^445339793 is an apocalyptic number.

It is an amenable number.

445339793 is a deficient number, since it is larger than the sum of its proper divisors (1).

445339793 is an equidigital number, since it uses as much as digits as its factorization.

445339793 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1224720, while the sum is 47.

The square root of 445339793 is about 21103.0754393761. The cubic root of 445339793 is about 763.6549437532.

The spelling of 445339793 in words is "four hundred forty-five million, three hundred thirty-nine thousand, seven hundred ninety-three".