447869 has 4 divisors (see below), whose sum is σ = 455520. Its totient is φ = 440220.

The previous prime is 447859. The next prime is 447877. The reversal of 447869 is 968744.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-447869 is a prime.

It is a super-2 number, since 2×447869² = 401173282322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (447829) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3737 + ... + 3854.

It is an arithmetic number, because the mean of its divisors is an integer number (113880).

2⁴⁴⁷⁸⁶⁹ is an apocalyptic number.

It is an amenable number.

447869 is a deficient number, since it is larger than the sum of its proper divisors (7651).

447869 is an equidigital number, since it uses as much as digits as its factorization.

447869 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7650.

The product of its digits is 48384, while the sum is 38.

The square root of 447869 is about 669.2301547300. The cubic root of 447869 is about 76.5097884295.

The spelling of 447869 in words is "four hundred forty-seven thousand, eight hundred sixty-nine".