447672481 has 8 divisors (see below), whose sum is σ = 459786600. Its totient is φ = 435615360.

The previous prime is 447672479. The next prime is 447672487. The reversal of 447672481 is 184276744.

It can be written as a sum of positive squares in 4 ways, for example, as 25000000 + 422672481 = 5000^2 + 20559^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 447672481 - 2¹ = 447672479 is a prime.

It is a super-2 number, since 2×447672481² = 400821300489390722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (447672487) 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, 1915 + ... + 29983.

It is an arithmetic number, because the mean of its divisors is an integer number (57473325).

Almost surely, 2^447672481 is an apocalyptic number.

447672481 is a gapful number since it is divisible by the number (41) formed by its first and last digit.

It is an amenable number.

447672481 is a deficient number, since it is larger than the sum of its proper divisors (12114119).

447672481 is a wasteful number, since it uses less digits than its factorization.

447672481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28499.

The product of its digits is 301056, while the sum is 43.

The square root of 447672481 is about 21158.2721648059. The cubic root of 447672481 is about 764.9859629759.

The spelling of 447672481 in words is "four hundred forty-seven million, six hundred seventy-two thousand, four hundred eighty-one".