447697199 has 2 divisors, whose sum is σ = 447697200. Its totient is φ = 447697198.

The previous prime is 447697183. The next prime is 447697207. The reversal of 447697199 is 991796744.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 447697199 - 2⁴ = 447697183 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (447697169) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 223848599 + 223848600.

It is an arithmetic number, because the mean of its divisors is an integer number (223848600).

Almost surely, 2^447697199 is an apocalyptic number.

447697199 is a deficient number, since it is larger than the sum of its proper divisors (1).

447697199 is an equidigital number, since it uses as much as digits as its factorization.

447697199 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3429216, while the sum is 56.

The square root of 447697199 is about 21158.8562781640. The cubic root of 447697199 is about 765.0000421490. Note that the first 4 decimals are identical.

The spelling of 447697199 in words is "four hundred forty-seven million, six hundred ninety-seven thousand, one hundred ninety-nine".