447216311 has 2 divisors, whose sum is σ = 447216312. Its totient is φ = 447216310.

The previous prime is 447216293. The next prime is 447216313. The reversal of 447216311 is 113612744.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 447216311 - 2²⁶ = 380107447 is a prime.

It is a super-3 number, since 3×447216311³ (a number of 27 digits) contains 333 as substring.

Together with 447216313, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (447216313) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 223608155 + 223608156.

It is an arithmetic number, because the mean of its divisors is an integer number (223608156).

Almost surely, 2^447216311 is an apocalyptic number.

447216311 is a deficient number, since it is larger than the sum of its proper divisors (1).

447216311 is an equidigital number, since it uses as much as digits as its factorization.

447216311 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4032, while the sum is 29.

The square root of 447216311 is about 21147.4894727483. The cubic root of 447216311 is about 764.7260391418.

The spelling of 447216311 in words is "four hundred forty-seven million, two hundred sixteen thousand, three hundred eleven".