447949084987 has 4 divisors (see below), whose sum is σ = 448030847920. Its totient is φ = 447867322056.

The previous prime is 447949084967. The next prime is 447949084991. The reversal of 447949084987 is 789480949744.

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 447949084987 - 2³¹ = 445801601339 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (447949084927) 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, 40873248 + ... + 40884205.

It is an arithmetic number, because the mean of its divisors is an integer number (112007711980).

Almost surely, 2^447949084987 is an apocalyptic number.

447949084987 is a deficient number, since it is larger than the sum of its proper divisors (81762933).

447949084987 is an equidigital number, since it uses as much as digits as its factorization.

447949084987 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81762932.

The product of its (nonzero) digits is 585252864, while the sum is 73.

The spelling of 447949084987 in words is "four hundred forty-seven billion, nine hundred forty-nine million, eighty-four thousand, nine hundred eighty-seven".