47491608 has 64 divisors (see below), whose sum is σ = 128684160. Its totient is φ = 14547456.

The previous prime is 47491601. The next prime is 47491673. The reversal of 47491608 is 80619474.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47491601) 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 15 ways as a sum of consecutive naturals, for example, 16191 + ... + 18897.

It is an arithmetic number, because the mean of its divisors is an integer number (2010690).

Almost surely, 2^47491608 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 47491608, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (64342080).

47491608 is an abundant number, since it is smaller than the sum of its proper divisors (81192552).

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

47491608 is a wasteful number, since it uses less digits than its factorization.

47491608 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2776 (or 2772 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 39.

The square root of 47491608 is about 6891.4155294830. The cubic root of 47491608 is about 362.1364929970.

The spelling of 47491608 in words is "forty-seven million, four hundred ninety-one thousand, six hundred eight".