447149 has 4 divisors (see below), whose sum is σ = 450300. Its totient is φ = 444000.

The previous prime is 447137. The next prime is 447173. The reversal of 447149 is 941744.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 136900 + 310249 = 370^2 + 557^2 .

It is a cyclic number.

It is not a de Polignac number, because 447149 - 2⁴ = 447133 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (447119) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1352 + ... + 1649.

It is an arithmetic number, because the mean of its divisors is an integer number (112575).

2⁴⁴⁷¹⁴⁹ is an apocalyptic number.

It is an amenable number.

447149 is a deficient number, since it is larger than the sum of its proper divisors (3151).

447149 is a wasteful number, since it uses less digits than its factorization.

447149 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3150.

The product of its digits is 4032, while the sum is 29.

The square root of 447149 is about 668.6920068312. The cubic root of 447149 is about 76.4687670642.

The spelling of 447149 in words is "four hundred forty-seven thousand, one hundred forty-nine".