28636086 has 16 divisors (see below), whose sum is σ = 57337344. Its totient is φ = 9534504.

The previous prime is 28636073. The next prime is 28636129. The reversal of 28636086 is 68063682.

It is a congruent number.

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, 4455 + ... + 8781.

It is an arithmetic number, because the mean of its divisors is an integer number (3583584).

Almost surely, 2^28636086 is an apocalyptic number.

28636086 is an abundant number, since it is smaller than the sum of its proper divisors (28701258).

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

28636086 is a wasteful number, since it uses less digits than its factorization.

28636086 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5435.

The product of its (nonzero) digits is 82944, while the sum is 39.

The square root of 28636086 is about 5351.2695689901. The cubic root of 28636086 is about 305.9411437916.

The spelling of 28636086 in words is "twenty-eight million, six hundred thirty-six thousand, eighty-six".