28545936 has 40 divisors (see below), whose sum is σ = 74516064. Its totient is φ = 9415680.

The previous prime is 28545929. The next prime is 28545943. The reversal of 28545936 is 63954582.

It is an interprime number because it is at equal distance from previous prime (28545929) and next prime (28545943).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1591 + ... + 7721.

Almost surely, 2^28545936 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28545936, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (37258032).

28545936 is an abundant number, since it is smaller than the sum of its proper divisors (45970128).

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

28545936 is a wasteful number, since it uses less digits than its factorization.

28545936 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6239 (or 6233 counting only the distinct ones).

The product of its digits is 259200, while the sum is 42.

The square root of 28545936 is about 5342.8396943947. The cubic root of 28545936 is about 305.6197592370.

The spelling of 28545936 in words is "twenty-eight million, five hundred forty-five thousand, nine hundred thirty-six".