28660822 has 8 divisors (see below), whose sum is σ = 43580376. Its totient is φ = 14134032.

The previous prime is 28660817. The next prime is 28660837. The reversal of 28660822 is 22806682.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 98008 + ... + 98299.

It is an arithmetic number, because the mean of its divisors is an integer number (5447547).

Almost surely, 2^28660822 is an apocalyptic number.

28660822 is a deficient number, since it is larger than the sum of its proper divisors (14919554).

28660822 is a wasteful number, since it uses less digits than its factorization.

28660822 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 196382.

The product of its (nonzero) digits is 18432, while the sum is 34.

The square root of 28660822 is about 5353.5802973337. The cubic root of 28660822 is about 306.0292096229.

The spelling of 28660822 in words is "twenty-eight million, six hundred sixty thousand, eight hundred twenty-two".