28535166 has 80 divisors (see below), whose sum is σ = 71089920. Its totient is φ = 8482320.

The previous prime is 28535161. The next prime is 28535167. The reversal of 28535166 is 66153582.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 28535166.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28535161) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 119275 + ... + 119513.

It is an arithmetic number, because the mean of its divisors is an integer number (888624).

Almost surely, 2^28535166 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28535166, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35544960).

28535166 is an abundant number, since it is smaller than the sum of its proper divisors (42554754).

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

28535166 is a wasteful number, since it uses less digits than its factorization.

28535166 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 331 (or 322 counting only the distinct ones).

The product of its digits is 43200, while the sum is 36.

The square root of 28535166 is about 5341.8317083188. The cubic root of 28535166 is about 305.5813189859.

The spelling of 28535166 in words is "twenty-eight million, five hundred thirty-five thousand, one hundred sixty-six".