447242729 has 8 divisors (see below), whose sum is σ = 472451040. Its totient is φ = 422201376.

The previous prime is 447242723. The next prime is 447242737. The reversal of 447242729 is 927242744.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 447242729 - 2⁴ = 447242713 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (447242723) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 36212 + ... + 46965.

It is an arithmetic number, because the mean of its divisors is an integer number (59056380).

Almost surely, 2^447242729 is an apocalyptic number.

It is an amenable number.

447242729 is a deficient number, since it is larger than the sum of its proper divisors (25208311).

447242729 is a wasteful number, since it uses less digits than its factorization.

447242729 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83479.

The product of its digits is 225792, while the sum is 41.

The square root of 447242729 is about 21148.1140766736. The cubic root of 447242729 is about 764.7410968326.

The spelling of 447242729 in words is "four hundred forty-seven million, two hundred forty-two thousand, seven hundred twenty-nine".