90008028 has 54 divisors (see below), whose sum is σ = 250096392. Its totient is φ = 27273840.

The previous prime is 90008027. The next prime is 90008033. The reversal of 90008028 is 82080009.

It is a junction number, because it is equal to n+sod(n) for n = 90007992 and 90008010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90008021) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 5976 + ... + 14687.

Almost surely, 2^90008028 is an apocalyptic number.

It is an amenable number.

90008028 is an abundant number, since it is smaller than the sum of its proper divisors (160088364).

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

90008028 is a wasteful number, since it uses less digits than its factorization.

90008028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20695 (or 20679 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 27.

The square root of 90008028 is about 9487.2560838211. The cubic root of 90008028 is about 448.1537989697.

The spelling of 90008028 in words is "ninety million, eight thousand, twenty-eight".