47218678 has 24 divisors (see below), whose sum is σ = 79876944. Its totient is φ = 20771520.

The previous prime is 47218669. The next prime is 47218679. The reversal of 47218678 is 87681274.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47218679) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 167898 + ... + 168178.

It is an arithmetic number, because the mean of its divisors is an integer number (3328206).

Almost surely, 2^47218678 is an apocalyptic number.

47218678 is a deficient number, since it is larger than the sum of its proper divisors (32658266).

47218678 is a wasteful number, since it uses less digits than its factorization.

47218678 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 600 (or 319 counting only the distinct ones).

The product of its digits is 150528, while the sum is 43.

The square root of 47218678 is about 6871.5848244783. The cubic root of 47218678 is about 361.4414378665.

The spelling of 47218678 in words is "forty-seven million, two hundred eighteen thousand, six hundred seventy-eight".