446612989 has 2 divisors, whose sum is σ = 446612990. Its totient is φ = 446612988.

The previous prime is 446612953. The next prime is 446613023. The reversal of 446612989 is 989216644.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 399800025 + 46812964 = 19995^2 + 6842^2 .

It is a cyclic number.

It is not a de Polignac number, because 446612989 - 2⁷ = 446612861 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (446612909) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 223306494 + 223306495.

It is an arithmetic number, because the mean of its divisors is an integer number (223306495).

Almost surely, 2^446612989 is an apocalyptic number.

It is an amenable number.

446612989 is a deficient number, since it is larger than the sum of its proper divisors (1).

446612989 is an equidigital number, since it uses as much as digits as its factorization.

446612989 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 746496, while the sum is 49.

The square root of 446612989 is about 21133.2200338708. The cubic root of 446612989 is about 764.3819970736.

The spelling of 446612989 in words is "four hundred forty-six million, six hundred twelve thousand, nine hundred eighty-nine".