28066895 has 8 divisors (see below), whose sum is σ = 35453040. Its totient is φ = 21271680.

The previous prime is 28066891. The next prime is 28066921. The reversal of 28066895 is 59866082.

It is a happy number.

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

It is not a de Polignac number, because 28066895 - 2² = 28066891 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28066891) 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, 147626 + ... + 147815.

It is an arithmetic number, because the mean of its divisors is an integer number (4431630).

Almost surely, 2^28066895 is an apocalyptic number.

28066895 is a deficient number, since it is larger than the sum of its proper divisors (7386145).

28066895 is a wasteful number, since it uses less digits than its factorization.

28066895 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 295465.

The product of its (nonzero) digits is 207360, while the sum is 44.

The square root of 28066895 is about 5297.8198346112. The cubic root of 28066895 is about 303.9005294079.

The spelling of 28066895 in words is "twenty-eight million, sixty-six thousand, eight hundred ninety-five".