28636883 has 4 divisors (see below), whose sum is σ = 31240248. Its totient is φ = 26033520.

The previous prime is 28636873. The next prime is 28636897. The reversal of 28636883 is 38863682.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 28636883 - 2⁸ = 28636627 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28636813) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1301666 + ... + 1301687.

It is an arithmetic number, because the mean of its divisors is an integer number (7810062).

Almost surely, 2^28636883 is an apocalyptic number.

28636883 is a deficient number, since it is larger than the sum of its proper divisors (2603365).

28636883 is a wasteful number, since it uses less digits than its factorization.

28636883 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2603364.

The product of its digits is 331776, while the sum is 44.

The square root of 28636883 is about 5351.3440367818. The cubic root of 28636883 is about 305.9439820848.

The spelling of 28636883 in words is "twenty-eight million, six hundred thirty-six thousand, eight hundred eighty-three".