4890728 has 16 divisors (see below), whose sum is σ = 9274500. Its totient is φ = 2417536.

The previous prime is 4890709. The next prime is 4890731. The reversal of 4890728 is 8270984.

It can be written as a sum of positive squares in 2 ways, for example, as 3771364 + 1119364 = 1942^2 + 1058^2 .

It is a junction number, because it is equal to n+sod(n) for n = 4890691 and 4890700.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2723 + ... + 4146.

Almost surely, 2^4890728 is an apocalyptic number.

It is an amenable number.

4890728 is a deficient number, since it is larger than the sum of its proper divisors (4383772).

4890728 is a wasteful number, since it uses less digits than its factorization.

4890728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6964 (or 6960 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 38.

The square root of 4890728 is about 2211.4990391135. The cubic root of 4890728 is about 169.7427250279.

The spelling of 4890728 in words is "four million, eight hundred ninety thousand, seven hundred twenty-eight".