447983969 has 4 divisors (see below), whose sum is σ = 449578500. Its totient is φ = 446389440.

The previous prime is 447983953. The next prime is 447984001. The reversal of 447983969 is 969389744.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 117180625 + 330803344 = 10825^2 + 18188^2 .

It is a cyclic number.

It is not a de Polignac number, because 447983969 - 2⁴ = 447983953 is a prime.

It is a super-2 number, since 2×447983969² = 401379272961985922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (447983069) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 796844 + ... + 797405.

It is an arithmetic number, because the mean of its divisors is an integer number (112394625).

Almost surely, 2^447983969 is an apocalyptic number.

It is an amenable number.

447983969 is a deficient number, since it is larger than the sum of its proper divisors (1594531).

447983969 is a wasteful number, since it uses less digits than its factorization.

447983969 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1594530.

The product of its digits is 11757312, while the sum is 59.

The square root of 447983969 is about 21165.6317883497. The cubic root of 447983969 is about 765.1633461549.

The spelling of 447983969 in words is "four hundred forty-seven million, nine hundred eighty-three thousand, nine hundred sixty-nine".