28966536 has 24 divisors (see below), whose sum is σ = 78451230. Its totient is φ = 9655488.

The previous prime is 28966529. The next prime is 28966543. The reversal of 28966536 is 63566982.

It is a happy number.

28966536 is a `hidden beast` number, since 28 + 96 + 6 + 536 = 666.

It is an interprime number because it is at equal distance from previous prime (28966529) and next prime (28966543).

It can be written as a sum of positive squares in only one way, i.e., 25704900 + 3261636 = 5070^2 + 1806^2 .

It is a tau number, because it is divible by the number of its divisors (24).

It is a super-3 number, since 3×28966536³ (a number of 23 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 28966491 and 28966500.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 201085 + ... + 201228.

Almost surely, 2^28966536 is an apocalyptic number.

It is an amenable number.

28966536 is an abundant number, since it is smaller than the sum of its proper divisors (49484694).

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

28966536 is a wasteful number, since it uses less digits than its factorization.

28966536 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 402325 (or 402318 counting only the distinct ones).

The product of its digits is 466560, while the sum is 45.

The square root of 28966536 is about 5382.0568558870. The cubic root of 28966536 is about 307.1134623598.

The spelling of 28966536 in words is "twenty-eight million, nine hundred sixty-six thousand, five hundred thirty-six".