28087596 has 18 divisors (see below), whose sum is σ = 70999292. Its totient is φ = 9362520.

The previous prime is 28087589. The next prime is 28087597. The reversal of 28087596 is 69578082.

It is a tau number, because it is divible by the number of its divisors (18).

It is not an unprimeable number, because it can be changed into a prime (28087597) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 390070 + ... + 390141.

Almost surely, 2^28087596 is an apocalyptic number.

It is an amenable number.

28087596 is an abundant number, since it is smaller than the sum of its proper divisors (42911696).

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

28087596 is a wasteful number, since it uses less digits than its factorization.

28087596 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 780221 (or 780216 counting only the distinct ones).

The product of its (nonzero) digits is 241920, while the sum is 45.

The square root of 28087596 is about 5299.7732026946. The cubic root of 28087596 is about 303.9752259359.

It can be divided in two parts, 2808 and 7596, that added together give a square (10404 = 102²).

The spelling of 28087596 in words is "twenty-eight million, eighty-seven thousand, five hundred ninety-six".