47678784 has 56 divisors (see below), whose sum is σ = 130515360. Its totient is φ = 15343104.

The previous prime is 47678783. The next prime is 47678789. The reversal of 47678784 is 48787674.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47678783) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1287 + ... + 9849.

Almost surely, 2^47678784 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 47678784, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (65257680).

47678784 is an abundant number, since it is smaller than the sum of its proper divisors (82836576).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

47678784 is a wasteful number, since it uses less digits than its factorization.

47678784 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8607 (or 8597 counting only the distinct ones).

The product of its digits is 2107392, while the sum is 51.

The square root of 47678784 is about 6904.9825488556. The cubic root of 47678784 is about 362.6116253935.

The spelling of 47678784 in words is "forty-seven million, six hundred seventy-eight thousand, seven hundred eighty-four".