47984118 has 64 divisors (see below), whose sum is σ = 123282432. Its totient is φ = 12101760.

The previous prime is 47984099. The next prime is 47984119. The reversal of 47984118 is 81148974.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 47984118.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47984119) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 10648 + ... + 14468.

It is an arithmetic number, because the mean of its divisors is an integer number (1926288).

Almost surely, 2^47984118 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 47984118, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (61641216).

47984118 is an abundant number, since it is smaller than the sum of its proper divisors (75298314).

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

47984118 is a wasteful number, since it uses less digits than its factorization.

47984118 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3869.

The product of its digits is 64512, while the sum is 42.

The square root of 47984118 is about 6927.0569508270. The cubic root of 47984118 is about 363.3840314931.

The spelling of 47984118 in words is "forty-seven million, nine hundred eighty-four thousand, one hundred eighteen".