47117212 has 24 divisors (see below), whose sum is σ = 84823200. Its totient is φ = 22890816.

The previous prime is 47117197. The next prime is 47117219. The reversal of 47117212 is 21271174.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47117219) 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, 22089 + ... + 24127.

It is an arithmetic number, because the mean of its divisors is an integer number (3534300).

Almost surely, 2^47117212 is an apocalyptic number.

It is an amenable number.

47117212 is a deficient number, since it is larger than the sum of its proper divisors (37705988).

47117212 is a wasteful number, since it uses less digits than its factorization.

47117212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2205 (or 2203 counting only the distinct ones).

The product of its digits is 784, while the sum is 25.

The square root of 47117212 is about 6864.1978409717. The cubic root of 47117212 is about 361.1823573577.

Adding to 47117212 its reverse (21271174), we get a palindrome (68388386).

The spelling of 47117212 in words is "forty-seven million, one hundred seventeen thousand, two hundred twelve".