47947488 has 96 divisors (see below), whose sum is σ = 134346240. Its totient is φ = 14929920.

The previous prime is 47947423. The next prime is 47947489. The reversal of 47947488 is 88474974.

It is a tau number, because it is divible by the number of its divisors (96).

Its product of digits (1806336) is a multiple of the sum of its prime divisors (392).

It is a self number, because there is not a number n which added to its sum of digits gives 47947488.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47947489) 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, 176793 + ... + 177063.

It is an arithmetic number, because the mean of its divisors is an integer number (1399440).

Almost surely, 2^47947488 is an apocalyptic number.

47947488 is a gapful number since it is divisible by the number (48) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 47947488, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (67173120).

47947488 is an abundant number, since it is smaller than the sum of its proper divisors (86398752).

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

47947488 is a wasteful number, since it uses less digits than its factorization.

47947488 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 400 (or 392 counting only the distinct ones).

The product of its digits is 1806336, while the sum is 51.

The square root of 47947488 is about 6924.4124660508. The cubic root of 47947488 is about 363.2915415463.

The spelling of 47947488 in words is "forty-seven million, nine hundred forty-seven thousand, four hundred eighty-eight".