28166826 has 16 divisors (see below), whose sum is σ = 56466144. Its totient is φ = 9366864.

The previous prime is 28166819. The next prime is 28166833. The reversal of 28166826 is 62866182.

It is an interprime number because it is at equal distance from previous prime (28166819) and next prime (28166833).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2641 + ... + 7956.

It is an arithmetic number, because the mean of its divisors is an integer number (3529134).

Almost surely, 2^28166826 is an apocalyptic number.

28166826 is an abundant number, since it is smaller than the sum of its proper divisors (28299318).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

28166826 is a wasteful number, since it uses less digits than its factorization.

28166826 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11045.

The product of its digits is 55296, while the sum is 39.

The square root of 28166826 is about 5307.2427869846. The cubic root of 28166826 is about 304.2607772172.

The spelling of 28166826 in words is "twenty-eight million, one hundred sixty-six thousand, eight hundred twenty-six".