28819166 has 8 divisors (see below), whose sum is σ = 43633080. Its totient is φ = 14274808.

The previous prime is 28819163. The next prime is 28819169. The reversal of 28819166 is 66191882.

It is an interprime number because it is at equal distance from previous prime (28819163) and next prime (28819169).

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28819163) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 67121 + ... + 67548.

It is an arithmetic number, because the mean of its divisors is an integer number (5454135).

Almost surely, 2^28819166 is an apocalyptic number.

28819166 is a deficient number, since it is larger than the sum of its proper divisors (14813914).

28819166 is a wasteful number, since it uses less digits than its factorization.

28819166 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 134778.

The product of its digits is 41472, while the sum is 41.

The square root of 28819166 is about 5368.3485356299. The cubic root of 28819166 is about 306.5917536508.

The spelling of 28819166 in words is "twenty-eight million, eight hundred nineteen thousand, one hundred sixty-six".