446972081 has 2 divisors, whose sum is σ = 446972082. Its totient is φ = 446972080.

The previous prime is 446972059. The next prime is 446972089. The reversal of 446972081 is 180279644.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 434305600 + 12666481 = 20840^2 + 3559^2 .

It is a cyclic number.

It is not a de Polignac number, because 446972081 - 2¹⁸ = 446709937 is a prime.

It is a super-2 number, since 2×446972081² = 399568082386941122, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (446972089) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 223486040 + 223486041.

It is an arithmetic number, because the mean of its divisors is an integer number (223486041).

Almost surely, 2^446972081 is an apocalyptic number.

It is an amenable number.

446972081 is a deficient number, since it is larger than the sum of its proper divisors (1).

446972081 is an equidigital number, since it uses as much as digits as its factorization.

446972081 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 96768, while the sum is 41.

The square root of 446972081 is about 21141.7142398624. The cubic root of 446972081 is about 764.5868052147.

The spelling of 446972081 in words is "four hundred forty-six million, nine hundred seventy-two thousand, eighty-one".