447487863 has 8 divisors (see below), whose sum is σ = 598342128. Its totient is φ = 297479424.

The previous prime is 447487861. The next prime is 447487877. The reversal of 447487863 is 368784744.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 447487863 - 2¹ = 447487861 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (447487861) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 210220 + ... + 212337.

It is an arithmetic number, because the mean of its divisors is an integer number (74792766).

Almost surely, 2^447487863 is an apocalyptic number.

447487863 is a deficient number, since it is larger than the sum of its proper divisors (150854265).

447487863 is a wasteful number, since it uses less digits than its factorization.

447487863 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 422913.

The product of its digits is 3612672, while the sum is 51.

The square root of 447487863 is about 21153.9089295572. The cubic root of 447487863 is about 764.8807896605.

The spelling of 447487863 in words is "four hundred forty-seven million, four hundred eighty-seven thousand, eight hundred sixty-three".