47678188 has 12 divisors (see below), whose sum is σ = 84442680. Its totient is φ = 23551712.

The previous prime is 47678179. The next prime is 47678209. The reversal of 47678188 is 88187674.

It is a super-2 number, since 2×47678188² = 4546419221926688, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 71473 + ... + 72136.

It is an arithmetic number, because the mean of its divisors is an integer number (7036890).

Almost surely, 2^47678188 is an apocalyptic number.

It is an amenable number.

47678188 is a deficient number, since it is larger than the sum of its proper divisors (36764492).

47678188 is a wasteful number, since it uses less digits than its factorization.

47678188 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 143696 (or 143694 counting only the distinct ones).

The product of its digits is 602112, while the sum is 49.

The square root of 47678188 is about 6904.9393914791. The cubic root of 47678188 is about 362.6101144669.

The spelling of 47678188 in words is "forty-seven million, six hundred seventy-eight thousand, one hundred eighty-eight".