47847744 has 84 divisors (see below), whose sum is σ = 156752544. Its totient is φ = 13669632.

The previous prime is 47847743. The next prime is 47847749. The reversal of 47847744 is 44774874.

It is a tau number, because it is divible by the number of its divisors (84).

It is a nude number because it is divisible by every one of its digits.

It is a self number, because there is not a number n which added to its sum of digits gives 47847744.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47847743) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1902 + ... + 9965.

Almost surely, 2^47847744 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 47847744, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (78376272).

47847744 is an abundant number, since it is smaller than the sum of its proper divisors (108904800).

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

47847744 is a wasteful number, since it uses less digits than its factorization.

47847744 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11892 (or 11879 counting only the distinct ones).

The product of its digits is 702464, while the sum is 45.

The square root of 47847744 is about 6917.2063725177. The cubic root of 47847744 is about 363.0394511229.

The spelling of 47847744 in words is "forty-seven million, eight hundred forty-seven thousand, seven hundred forty-four".