447474309 has 8 divisors (see below), whose sum is σ = 598208160. Its totient is φ = 297528336.

The previous prime is 447474277. The next prime is 447474311. The reversal of 447474309 is 903474744.

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

It is not a de Polignac number, because 447474309 - 2⁵ = 447474277 is a prime.

It is a super-3 number, since 3×447474309³ (a number of 27 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (447474319) 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, 195642 + ... + 197915.

It is an arithmetic number, because the mean of its divisors is an integer number (74776020).

Almost surely, 2^447474309 is an apocalyptic number.

It is an amenable number.

447474309 is a deficient number, since it is larger than the sum of its proper divisors (150733851).

447474309 is a wasteful number, since it uses less digits than its factorization.

447474309 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 393939.

The product of its (nonzero) digits is 338688, while the sum is 42.

The square root of 447474309 is about 21153.5885608093. The cubic root of 447474309 is about 764.8730670683.

The spelling of 447474309 in words is "four hundred forty-seven million, four hundred seventy-four thousand, three hundred nine".