47178212 has 6 divisors (see below), whose sum is σ = 82561878. Its totient is φ = 23589104.

The previous prime is 47178199. The next prime is 47178227. The reversal of 47178212 is 21287174.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 39866596 + 7311616 = 6314^2 + 2704^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5897273 + ... + 5897280.

It is an arithmetic number, because the mean of its divisors is an integer number (13760313).

Almost surely, 2^47178212 is an apocalyptic number.

It is an amenable number.

47178212 is a deficient number, since it is larger than the sum of its proper divisors (35383666).

47178212 is a wasteful number, since it uses less digits than its factorization.

47178212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11794557 (or 11794555 counting only the distinct ones).

The product of its digits is 6272, while the sum is 32.

The square root of 47178212 is about 6868.6397488877. The cubic root of 47178212 is about 361.3381576253.

The spelling of 47178212 in words is "forty-seven million, one hundred seventy-eight thousand, two hundred twelve".