447431 has 4 divisors (see below), whose sum is σ = 471000. Its totient is φ = 423864.

The previous prime is 447427. The next prime is 447439. The reversal of 447431 is 134744.

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 447431 - 2² = 447427 is a prime.

It is a super-2 number, since 2×447431² = 400388999522, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 447397 and 447406.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (447439) 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, 11756 + ... + 11793.

It is an arithmetic number, because the mean of its divisors is an integer number (117750).

2⁴⁴⁷⁴³¹ is an apocalyptic number.

447431 is a deficient number, since it is larger than the sum of its proper divisors (23569).

447431 is a wasteful number, since it uses less digits than its factorization.

447431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23568.

The product of its digits is 1344, while the sum is 23.

The square root of 447431 is about 668.9028330034. The cubic root of 447431 is about 76.4848390079.

It can be divided in two parts, 44743 and 1, that added together give a palindrome (44744).

The spelling of 447431 in words is "four hundred forty-seven thousand, four hundred thirty-one".