447897683 has 2 divisors, whose sum is σ = 447897684. Its totient is φ = 447897682.

The previous prime is 447897661. The next prime is 447897707. The reversal of 447897683 is 386798744.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 447897683 - 2¹² = 447893587 is a prime.

It is a super-2 number, since 2×447897683² = 401224668873536978, which contains 22 as substring.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (447897383) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 223948841 + 223948842.

It is an arithmetic number, because the mean of its divisors is an integer number (223948842).

Almost surely, 2^447897683 is an apocalyptic number.

447897683 is a deficient number, since it is larger than the sum of its proper divisors (1).

447897683 is an equidigital number, since it uses as much as digits as its factorization.

447897683 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 8128512, while the sum is 56.

The square root of 447897683 is about 21163.5933385614. The cubic root of 447897683 is about 765.1142170726.

The spelling of 447897683 in words is "four hundred forty-seven million, eight hundred ninety-seven thousand, six hundred eighty-three".