28866158 has 8 divisors (see below), whose sum is σ = 44306328. Its totient is φ = 14097384.

The previous prime is 28866157. The next prime is 28866191. The reversal of 28866158 is 85166882.

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 (28866151) 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, 167741 + ... + 167912.

It is an arithmetic number, because the mean of its divisors is an integer number (5538291).

Almost surely, 2^28866158 is an apocalyptic number.

28866158 is a deficient number, since it is larger than the sum of its proper divisors (15440170).

28866158 is a wasteful number, since it uses less digits than its factorization.

28866158 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 335698.

The product of its digits is 184320, while the sum is 44.

The square root of 28866158 is about 5372.7235179190. The cubic root of 28866158 is about 306.7583041099.

The spelling of 28866158 in words is "twenty-eight million, eight hundred sixty-six thousand, one hundred fifty-eight".