47678228 has 24 divisors (see below), whose sum is σ = 91949088. Its totient is φ = 21492576.

The previous prime is 47678227. The next prime is 47678243. The reversal of 47678228 is 82287674.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47678227) 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, 8426 + ... + 12897.

It is an arithmetic number, because the mean of its divisors is an integer number (3831212).

Almost surely, 2^47678228 is an apocalyptic number.

It is an amenable number.

47678228 is a deficient number, since it is larger than the sum of its proper divisors (44270860).

47678228 is a wasteful number, since it uses less digits than its factorization.

47678228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21383 (or 21381 counting only the distinct ones).

The product of its digits is 301056, while the sum is 44.

The square root of 47678228 is about 6904.9422879558. The cubic root of 47678228 is about 362.6102158718.

The spelling of 47678228 in words is "forty-seven million, six hundred seventy-eight thousand, two hundred twenty-eight".