447440811 has 4 divisors (see below), whose sum is σ = 596587752. Its totient is φ = 298293872.

The previous prime is 447440779. The next prime is 447440857. The reversal of 447440811 is 118044744.

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

It is a cyclic number.

It is not a de Polignac number, because 447440811 - 2⁵ = 447440779 is a prime.

It is not an unprimeable number, because it can be changed into a prime (447440711) 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, 74573466 + ... + 74573471.

It is an arithmetic number, because the mean of its divisors is an integer number (149146938).

Almost surely, 2^447440811 is an apocalyptic number.

447440811 is a deficient number, since it is larger than the sum of its proper divisors (149146941).

447440811 is a wasteful number, since it uses less digits than its factorization.

447440811 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 149146940.

The product of its (nonzero) digits is 14336, while the sum is 33.

The square root of 447440811 is about 21152.7967654398. The cubic root of 447440811 is about 764.8539804177.

The spelling of 447440811 in words is "four hundred forty-seven million, four hundred forty thousand, eight hundred eleven".