447429 has 4 divisors (see below), whose sum is σ = 596576. Its totient is φ = 298284.

The previous prime is 447427. The next prime is 447439. The reversal of 447429 is 924744.

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 not a de Polignac number, because 447429 - 2¹ = 447427 is a prime.

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 = 447396 and 447405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (447427) 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, 74569 + ... + 74574.

It is an arithmetic number, because the mean of its divisors is an integer number (149144).

2⁴⁴⁷⁴²⁹ is an apocalyptic number.

It is an amenable number.

447429 is a deficient number, since it is larger than the sum of its proper divisors (149147).

447429 is a wasteful number, since it uses less digits than its factorization.

447429 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 149146.

The product of its digits is 8064, while the sum is 30.

The square root of 447429 is about 668.9013380163. The cubic root of 447429 is about 76.4847250462.

The spelling of 447429 in words is "four hundred forty-seven thousand, four hundred twenty-nine".