28666151 has 8 divisors (see below), whose sum is σ = 29497584. Its totient is φ = 27846720.

The previous prime is 28666147. The next prime is 28666189. The reversal of 28666151 is 15166682.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 28666151 - 2² = 28666147 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 (28666951) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1961 + ... + 7821.

It is an arithmetic number, because the mean of its divisors is an integer number (3687198).

Almost surely, 2^28666151 is an apocalyptic number.

28666151 is a deficient number, since it is larger than the sum of its proper divisors (831433).

28666151 is an equidigital number, since it uses as much as digits as its factorization.

28666151 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6001.

The product of its digits is 17280, while the sum is 35.

The square root of 28666151 is about 5354.0779785132. The cubic root of 28666151 is about 306.0481754501.

The spelling of 28666151 in words is "twenty-eight million, six hundred sixty-six thousand, one hundred fifty-one".