28086276 has 24 divisors (see below), whose sum is σ = 65628864. Its totient is φ = 9348640.

The previous prime is 28086257. The next prime is 28086281. The reversal of 28086276 is 67268082.

It is a hoax number, since the sum of its digits (39) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10606 + ... + 12986.

It is an arithmetic number, because the mean of its divisors is an integer number (2734536).

Almost surely, 2^28086276 is an apocalyptic number.

It is an amenable number.

28086276 is an abundant number, since it is smaller than the sum of its proper divisors (37542588).

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

28086276 is a wasteful number, since it uses less digits than its factorization.

28086276 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3371 (or 3369 counting only the distinct ones).

The product of its (nonzero) digits is 64512, while the sum is 39.

The square root of 28086276 is about 5299.6486676005. The cubic root of 28086276 is about 303.9704640049.

The spelling of 28086276 in words is "twenty-eight million, eighty-six thousand, two hundred seventy-six".