4891028 has 6 divisors (see below), whose sum is σ = 8559306. Its totient is φ = 2445512.

The previous prime is 4891027. The next prime is 4891039. The reversal of 4891028 is 8201984.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 4787344 + 103684 = 2188^2 + 322^2 .

It is a junction number, because it is equal to n+sod(n) for n = 4890985 and 4891003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4891027) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 611375 + ... + 611382.

It is an arithmetic number, because the mean of its divisors is an integer number (1426551).

Almost surely, 2^4891028 is an apocalyptic number.

It is an amenable number.

4891028 is a deficient number, since it is larger than the sum of its proper divisors (3668278).

4891028 is a wasteful number, since it uses less digits than its factorization.

4891028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1222761 (or 1222759 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 32.

The square root of 4891028 is about 2211.5668653694. The cubic root of 4891028 is about 169.7461956616.

The spelling of 4891028 in words is "four million, eight hundred ninety-one thousand, twenty-eight".