4987432728 has 48 divisors (see below), whose sum is σ = 13516685520. Its totient is φ = 1661363136.

The previous prime is 4987432727. The next prime is 4987432811. The reversal of 4987432728 is 8272347894.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4987432727) 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, 88650 + ... + 133542.

It is an arithmetic number, because the mean of its divisors is an integer number (281597615).

Almost surely, 2^4987432728 is an apocalyptic number.

It is an amenable number.

4987432728 is an abundant number, since it is smaller than the sum of its proper divisors (8529252792).

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

4987432728 is a wasteful number, since it uses less digits than its factorization.

4987432728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46448 (or 46441 counting only the distinct ones).

The product of its digits is 5419008, while the sum is 54.

The square root of 4987432728 is about 70621.7581769245. The cubic root of 4987432728 is about 1708.5420958429.

The spelling of 4987432728 in words is "four billion, nine hundred eighty-seven million, four hundred thirty-two thousand, seven hundred twenty-eight".