47671209 has 24 divisors (see below), whose sum is σ = 73008000. Its totient is φ = 29890080.

The previous prime is 47671201. The next prime is 47671223. The reversal of 47671209 is 90217674.

It is a happy number.

It is not a de Polignac number, because 47671209 - 2³ = 47671201 is a prime.

It is not an unprimeable number, because it can be changed into a prime (47671201) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 24544 + ... + 26414.

It is an arithmetic number, because the mean of its divisors is an integer number (3042000).

Almost surely, 2^47671209 is an apocalyptic number.

It is an amenable number.

47671209 is a deficient number, since it is larger than the sum of its proper divisors (25336791).

47671209 is a wasteful number, since it uses less digits than its factorization.

47671209 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2045 (or 2042 counting only the distinct ones).

The product of its (nonzero) digits is 21168, while the sum is 36.

The square root of 47671209 is about 6904.4340101126. The cubic root of 47671209 is about 362.5924209850.

The spelling of 47671209 in words is "forty-seven million, six hundred seventy-one thousand, two hundred nine".