447999983 has 2 divisors, whose sum is σ = 447999984. Its totient is φ = 447999982.

The previous prime is 447999949. The next prime is 448000013. The reversal of 447999983 is 389999744.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 447999983 - 2¹⁶ = 447934447 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (447999583) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 223999991 + 223999992.

It is an arithmetic number, because the mean of its divisors is an integer number (223999992).

Almost surely, 2^447999983 is an apocalyptic number.

447999983 is a deficient number, since it is larger than the sum of its proper divisors (1).

447999983 is an equidigital number, since it uses as much as digits as its factorization.

447999983 is an evil number, because the sum of its binary digits is even.

The product of its digits is 17635968, while the sum is 62.

The square root of 447999983 is about 21166.0100869295. The cubic root of 447999983 is about 765.1724634304.

The spelling of 447999983 in words is "four hundred forty-seven million, nine hundred ninety-nine thousand, nine hundred eighty-three".