28866922 has 8 divisors (see below), whose sum is σ = 49486176. Its totient is φ = 12371532.

The previous prime is 28866913. The next prime is 28866923. The reversal of 28866922 is 22966882.

It is a happy number.

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

It is not an unprimeable number, because it can be changed into a prime (28866923) 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, 1030948 + ... + 1030975.

It is an arithmetic number, because the mean of its divisors is an integer number (6185772).

Almost surely, 2^28866922 is an apocalyptic number.

28866922 is a deficient number, since it is larger than the sum of its proper divisors (20619254).

28866922 is a wasteful number, since it uses less digits than its factorization.

28866922 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2061932.

The product of its digits is 165888, while the sum is 43.

The square root of 28866922 is about 5372.7946173290. The cubic root of 28866922 is about 306.7610104079.

The spelling of 28866922 in words is "twenty-eight million, eight hundred sixty-six thousand, nine hundred twenty-two".