47684736 has 192 divisors, whose sum is σ = 154664640. Its totient is φ = 13977600.

The previous prime is 47684717. The next prime is 47684753. The reversal of 47684736 is 63748674.

It is a tau number, because it is divible by the number of its divisors (192).

It is a junction number, because it is equal to n+sod(n) for n = 47684691 and 47684700.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 671581 + ... + 671651.

It is an arithmetic number, because the mean of its divisors is an integer number (805545).

Almost surely, 2^47684736 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 47684736, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (77332320).

47684736 is an abundant number, since it is smaller than the sum of its proper divisors (106979904).

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

47684736 is a wasteful number, since it uses less digits than its factorization.

47684736 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 155 (or 140 counting only the distinct ones).

The product of its digits is 677376, while the sum is 45.

The square root of 47684736 is about 6905.4135285296. The cubic root of 47684736 is about 362.6267136880.

The spelling of 47684736 in words is "forty-seven million, six hundred eighty-four thousand, seven hundred thirty-six".