28467285 has 64 divisors (see below), whose sum is σ = 58060800. Its totient is φ = 11807040.

The previous prime is 28467281. The next prime is 28467293. The reversal of 28467285 is 58276482.

It is a happy number.

28467285 is a nontrivial binomial coefficient, being equal to C(7546, 2).

It is not a de Polignac number, because 28467285 - 2² = 28467281 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28467281) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 56344 + ... + 56846.

It is an arithmetic number, because the mean of its divisors is an integer number (907200).

Almost surely, 2^28467285 is an apocalyptic number.

28467285 is the 7545-th triangular number and also the 3773-rd hexagonal number.

It is an amenable number.

28467285 is an abundant number, since it is smaller than the sum of its proper divisors (29593515).

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

28467285 is a wasteful number, since it uses less digits than its factorization.

28467285 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 543 (or 529 counting only the distinct ones).

The product of its digits is 215040, while the sum is 42.

The square root of 28467285 is about 5335.4742057290. The cubic root of 28467285 is about 305.3388154541.

The spelling of 28467285 in words is "twenty-eight million, four hundred sixty-seven thousand, two hundred eighty-five".