446679889 has 2 divisors, whose sum is σ = 446679890. Its totient is φ = 446679888.

The previous prime is 446679853. The next prime is 446679901. The reversal of 446679889 is 988976644.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 330039889 + 116640000 = 18167^2 + 10800^2 .

It is a cyclic number.

It is not a de Polignac number, because 446679889 - 2⁹ = 446679377 is a prime.

It is not a weakly prime, because it can be changed into another prime (446679839) 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, 223339944 + 223339945.

It is an arithmetic number, because the mean of its divisors is an integer number (223339945).

Almost surely, 2^446679889 is an apocalyptic number.

It is an amenable number.

446679889 is a deficient number, since it is larger than the sum of its proper divisors (1).

446679889 is an equidigital number, since it uses as much as digits as its factorization.

446679889 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 20901888, while the sum is 61.

The square root of 446679889 is about 21134.8027906579. The cubic root of 446679889 is about 764.4201618111.

The spelling of 446679889 in words is "four hundred forty-six million, six hundred seventy-nine thousand, eight hundred eighty-nine".