47693688 has 64 divisors (see below), whose sum is σ = 136853760. Its totient is φ = 13568256.

The previous prime is 47693671. The next prime is 47693689. The reversal of 47693688 is 88639674.

It is a self number, because there is not a number n which added to its sum of digits gives 47693688.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47693689) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 52131 + ... + 53037.

It is an arithmetic number, because the mean of its divisors is an integer number (2138340).

Almost surely, 2^47693688 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 47693688, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (68426880).

47693688 is an abundant number, since it is smaller than the sum of its proper divisors (89160072).

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

47693688 is a wasteful number, since it uses less digits than its factorization.

47693688 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1236 (or 1232 counting only the distinct ones).

The product of its digits is 1741824, while the sum is 51.

The square root of 47693688 is about 6906.0616852154. The cubic root of 47693688 is about 362.6494046054.

The spelling of 47693688 in words is "forty-seven million, six hundred ninety-three thousand, six hundred eighty-eight".