28822686 has 8 divisors (see below), whose sum is σ = 57645384. Its totient is φ = 9607560.

The previous prime is 28822669. The next prime is 28822687. The reversal of 28822686 is 68622882.

It is a sphenic number, since it is the product of 3 distinct primes.

28822686 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28822687) 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, 2401885 + ... + 2401896.

It is an arithmetic number, because the mean of its divisors is an integer number (7205673).

Almost surely, 2^28822686 is an apocalyptic number.

28822686 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

28822686 is a wasteful number, since it uses less digits than its factorization.

28822686 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4803786.

The product of its digits is 147456, while the sum is 42.

The square root of 28822686 is about 5368.6763731855. The cubic root of 28822686 is about 306.6042356109.

The spelling of 28822686 in words is "twenty-eight million, eight hundred twenty-two thousand, six hundred eighty-six".