47691392 has 128 divisors (see below), whose sum is σ = 119854080. Its totient is φ = 18432000.

The previous prime is 47691389. The next prime is 47691401. The reversal of 47691392 is 29319674.

47691392 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (128).

It is a super-3 number, since 3×47691392³ (a number of 24 digits) contains 333 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 472142 + ... + 472242.

It is an arithmetic number, because the mean of its divisors is an integer number (936360).

Almost surely, 2^47691392 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 47691392, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (59927040).

47691392 is an abundant number, since it is smaller than the sum of its proper divisors (72162688).

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

47691392 is a wasteful number, since it uses less digits than its factorization.

47691392 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 170 (or 158 counting only the distinct ones).

The product of its digits is 81648, while the sum is 41.

The square root of 47691392 is about 6905.8954524377. The cubic root of 47691392 is about 362.6435851323.

The spelling of 47691392 in words is "forty-seven million, six hundred ninety-one thousand, three hundred ninety-two".