47467728 has 160 divisors (see below), whose sum is σ = 169989120. Its totient is φ = 12320640.

The previous prime is 47467663. The next prime is 47467729. The reversal of 47467728 is 82776474.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47467729) 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 31 ways as a sum of consecutive naturals, for example, 32551 + ... + 33977.

It is an arithmetic number, because the mean of its divisors is an integer number (1062432).

Almost surely, 2^47467728 is an apocalyptic number.

47467728 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 47467728, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (84994560).

47467728 is an abundant number, since it is smaller than the sum of its proper divisors (122521392).

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

47467728 is a wasteful number, since it uses less digits than its factorization.

47467728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1462 (or 1450 counting only the distinct ones).

The product of its digits is 526848, while the sum is 45.

The square root of 47467728 is about 6889.6827212870. The cubic root of 47467728 is about 362.0757856449.

The spelling of 47467728 in words is "forty-seven million, four hundred sixty-seven thousand, seven hundred twenty-eight".