28985028 has 24 divisors (see below), whose sum is σ = 67761120. Its totient is φ = 9643200.

The previous prime is 28985027. The next prime is 28985029. The reversal of 28985028 is 82058982.

It is an interprime number because it is at equal distance from previous prime (28985027) and next prime (28985029).

It is not an unprimeable number, because it can be changed into a prime (28985027) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5203 + ... + 9221.

It is an arithmetic number, because the mean of its divisors is an integer number (2823380).

Almost surely, 2^28985028 is an apocalyptic number.

It is an amenable number.

28985028 is an abundant number, since it is smaller than the sum of its proper divisors (38776092).

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

28985028 is a wasteful number, since it uses less digits than its factorization.

28985028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4627 (or 4625 counting only the distinct ones).

The product of its (nonzero) digits is 92160, while the sum is 42.

The square root of 28985028 is about 5383.7745123658. The cubic root of 28985028 is about 307.1788013665.

The spelling of 28985028 in words is "twenty-eight million, nine hundred eighty-five thousand, twenty-eight".