447947 has 4 divisors (see below), whose sum is σ = 452400. Its totient is φ = 443496.

The previous prime is 447943. The next prime is 447961. The reversal of 447947 is 749744.

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 447947 - 2² = 447943 is a prime.

It is a Duffinian number.

It is a plaindrome in base 6.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 447947.

It is not an unprimeable number, because it can be changed into a prime (447943) 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, 2072 + ... + 2277.

It is an arithmetic number, because the mean of its divisors is an integer number (113100).

2⁴⁴⁷⁹⁴⁷ is an apocalyptic number.

447947 is a deficient number, since it is larger than the sum of its proper divisors (4453).

447947 is a wasteful number, since it uses less digits than its factorization.

447947 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4452.

The product of its digits is 28224, while the sum is 35.

The square root of 447947 is about 669.2884281085. The cubic root of 447947 is about 76.5142297707.

The spelling of 447947 in words is "four hundred forty-seven thousand, nine hundred forty-seven".