28808167 has 8 divisors (see below), whose sum is σ = 30280320. Its totient is φ = 27354360.

The previous prime is 28808159. The next prime is 28808177. The reversal of 28808167 is 76180882.

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

It is not a de Polignac number, because 28808167 - 2³ = 28808159 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28808137) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1309 + ... + 7702.

It is an arithmetic number, because the mean of its divisors is an integer number (3785040).

Almost surely, 2^28808167 is an apocalyptic number.

28808167 is a deficient number, since it is larger than the sum of its proper divisors (1472153).

28808167 is a wasteful number, since it uses less digits than its factorization.

28808167 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9173.

The product of its (nonzero) digits is 43008, while the sum is 40.

The square root of 28808167 is about 5367.3240073616. The cubic root of 28808167 is about 306.5527445206.

The spelling of 28808167 in words is "twenty-eight million, eight hundred eight thousand, one hundred sixty-seven".