28166698 has 8 divisors (see below), whose sum is σ = 48285792. Its totient is φ = 12071436.

The previous prime is 28166687. The next prime is 28166701. The reversal of 28166698 is 89666182.

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

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, 1005940 + ... + 1005967.

It is an arithmetic number, because the mean of its divisors is an integer number (6035724).

Almost surely, 2^28166698 is an apocalyptic number.

28166698 is a deficient number, since it is larger than the sum of its proper divisors (20119094).

28166698 is a wasteful number, since it uses less digits than its factorization.

28166698 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2011916.

The product of its digits is 248832, while the sum is 46.

The square root of 28166698 is about 5307.2307279786. The cubic root of 28166698 is about 304.2603163271.

The spelling of 28166698 in words is "twenty-eight million, one hundred sixty-six thousand, six hundred ninety-eight".