47587428 has 108 divisors (see below), whose sum is σ = 142849980. Its totient is φ = 13313664.

The previous prime is 47587427. The next prime is 47587447. The reversal of 47587428 is 82478574.

47587428 is a `hidden beast` number, since 47 + 587 + 4 + 28 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 36578304 + 11009124 = 6048^2 + 3318^2 .

It is not an unprimeable number, because it can be changed into a prime (47587427) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 93238 + ... + 93746.

It is an arithmetic number, because the mean of its divisors is an integer number (1322685).

Almost surely, 2^47587428 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 47587428, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (71424990).

47587428 is an abundant number, since it is smaller than the sum of its proper divisors (95262552).

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

47587428 is a wasteful number, since it uses less digits than its factorization.

47587428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 586 (or 574 counting only the distinct ones).

The product of its digits is 501760, while the sum is 45.

The square root of 47587428 is about 6898.3641539136. The cubic root of 47587428 is about 362.3798806134.

The spelling of 47587428 in words is "forty-seven million, five hundred eighty-seven thousand, four hundred twenty-eight".