47788678 has 16 divisors (see below), whose sum is σ = 82241280. Its totient is φ = 20401416.

The previous prime is 47788633. The next prime is 47788679. The reversal of 47788678 is 87688774.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47788679) 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, 2808 + ... + 10171.

It is an arithmetic number, because the mean of its divisors is an integer number (5140080).

Almost surely, 2^47788678 is an apocalyptic number.

47788678 is a deficient number, since it is larger than the sum of its proper divisors (34452602).

47788678 is a wasteful number, since it uses less digits than its factorization.

47788678 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13251.

The product of its digits is 4214784, while the sum is 55.

The square root of 47788678 is about 6912.9355558981. The cubic root of 47788678 is about 362.8900040358.

It can be divided in two parts, 4778 and 8678, that added together give a square (13456 = 116²).

The spelling of 47788678 in words is "forty-seven million, seven hundred eighty-eight thousand, six hundred seventy-eight".