446989471 has 2 divisors, whose sum is σ = 446989472. Its totient is φ = 446989470.

The previous prime is 446989463. The next prime is 446989513. The reversal of 446989471 is 174989644.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 446989471 - 2³ = 446989463 is a prime.

It is a super-3 number, since 3×446989471³ (a number of 27 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (446984471) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 223494735 + 223494736.

It is an arithmetic number, because the mean of its divisors is an integer number (223494736).

Almost surely, 2^446989471 is an apocalyptic number.

446989471 is a deficient number, since it is larger than the sum of its proper divisors (1).

446989471 is an equidigital number, since it uses as much as digits as its factorization.

446989471 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1741824, while the sum is 52.

The square root of 446989471 is about 21142.1255080940. The cubic root of 446989471 is about 764.5967208170.

The spelling of 446989471 in words is "four hundred forty-six million, nine hundred eighty-nine thousand, four hundred seventy-one".