447231 has 4 divisors (see below), whose sum is σ = 596312. Its totient is φ = 298152.

The previous prime is 447221. The next prime is 447233. The reversal of 447231 is 132744.

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

It is not a de Polignac number, because 447231 - 2¹¹ = 445183 is a prime.

It is a super-2 number, since 2×447231² = 400031134722, which contains 22 as substring.

It is a D-number.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 447198 and 447207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (447233) 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, 74536 + ... + 74541.

It is an arithmetic number, because the mean of its divisors is an integer number (149078).

2⁴⁴⁷²³¹ is an apocalyptic number.

447231 is a deficient number, since it is larger than the sum of its proper divisors (149081).

447231 is a wasteful number, since it uses less digits than its factorization.

447231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 149080.

The product of its digits is 672, while the sum is 21.

The square root of 447231 is about 668.7533177488. The cubic root of 447231 is about 76.4734411629.

Adding to 447231 its reverse (132744), we get a palindrome (579975).

The spelling of 447231 in words is "four hundred forty-seven thousand, two hundred thirty-one".