28085301 has 6 divisors (see below), whose sum is σ = 40567670. Its totient is φ = 18723528.

The previous prime is 28085269. The next prime is 28085303. The reversal of 28085301 is 10358082.

It is a happy number.

28085301 is a `hidden beast` number, since 280 + 85 + 301 = 666.

It can be written as a sum of positive squares in only one way, i.e., 21068100 + 7017201 = 4590^2 + 2649^2 .

It is not a de Polignac number, because 28085301 - 2⁵ = 28085269 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28085303) 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, 1560286 + ... + 1560303.

Almost surely, 2^28085301 is an apocalyptic number.

It is an amenable number.

28085301 is a deficient number, since it is larger than the sum of its proper divisors (12482369).

28085301 is a wasteful number, since it uses less digits than its factorization.

28085301 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3120595 (or 3120592 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 27.

The square root of 28085301 is about 5299.5566795724. The cubic root of 28085301 is about 303.9669465736.

The spelling of 28085301 in words is "twenty-eight million, eighty-five thousand, three hundred one".