446944213 has 2 divisors, whose sum is σ = 446944214. Its totient is φ = 446944212.

The previous prime is 446944187. The next prime is 446944217. The reversal of 446944213 is 312449644.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 408727089 + 38217124 = 20217^2 + 6182^2 .

It is a cyclic number.

It is not a de Polignac number, because 446944213 - 2⁹ = 446943701 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (446944217) 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, 223472106 + 223472107.

It is an arithmetic number, because the mean of its divisors is an integer number (223472107).

Almost surely, 2^446944213 is an apocalyptic number.

It is an amenable number.

446944213 is a deficient number, since it is larger than the sum of its proper divisors (1).

446944213 is an equidigital number, since it uses as much as digits as its factorization.

446944213 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 82944, while the sum is 37.

The square root of 446944213 is about 21141.0551534213. The cubic root of 446944213 is about 764.5709146264.

The spelling of 446944213 in words is "four hundred forty-six million, nine hundred forty-four thousand, two hundred thirteen".