28085632 has 32 divisors (see below), whose sum is σ = 59247720. Its totient is φ = 13215744.

The previous prime is 28085609. The next prime is 28085633. The reversal of 28085632 is 23658082.

It is a tau number, because it is divible by the number of its divisors (32).

It is a Harshad number since it is a multiple of its sum of digits (34).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28085633) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4278 + ... + 8629.

Almost surely, 2^28085632 is an apocalyptic number.

It is an amenable number.

28085632 is an abundant number, since it is smaller than the sum of its proper divisors (31162088).

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

28085632 is a wasteful number, since it uses less digits than its factorization.

28085632 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12938 (or 12926 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 34.

The square root of 28085632 is about 5299.5879085076. The cubic root of 28085632 is about 303.9681407056.

The spelling of 28085632 in words is "twenty-eight million, eighty-five thousand, six hundred thirty-two".