47043309 has 8 divisors (see below), whose sum is σ = 62884000. Its totient is φ = 31282416.

The previous prime is 47043289. The next prime is 47043319. The reversal of 47043309 is 90334074.

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

It is not a de Polignac number, because 47043309 - 2⁷ = 47043181 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47043319) 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, 18559 + ... + 20940.

It is an arithmetic number, because the mean of its divisors is an integer number (7860500).

Almost surely, 2^47043309 is an apocalyptic number.

It is an amenable number.

47043309 is a deficient number, since it is larger than the sum of its proper divisors (15840691).

47043309 is a wasteful number, since it uses less digits than its factorization.

47043309 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39899.

The product of its (nonzero) digits is 9072, while the sum is 30.

The square root of 47043309 is about 6858.8125065495. The cubic root of 47043309 is about 360.9934212525.

The spelling of 47043309 in words is "forty-seven million, forty-three thousand, three hundred nine".