28279097 has 8 divisors (see below), whose sum is σ = 35257152. Its totient is φ = 22035600.

The previous prime is 28279093. The next prime is 28279117. The reversal of 28279097 is 79097282.

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 28279097 - 2² = 28279093 is a prime.

It is not an unprimeable number, because it can be changed into a prime (28279093) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 183554 + ... + 183707.

It is an arithmetic number, because the mean of its divisors is an integer number (4407144).

Almost surely, 2^28279097 is an apocalyptic number.

It is an amenable number.

28279097 is a deficient number, since it is larger than the sum of its proper divisors (6978055).

28279097 is a wasteful number, since it uses less digits than its factorization.

28279097 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 367279.

The product of its (nonzero) digits is 127008, while the sum is 44.

The square root of 28279097 is about 5317.8094174199. The cubic root of 28279097 is about 304.6644953589.

The spelling of 28279097 in words is "twenty-eight million, two hundred seventy-nine thousand, ninety-seven".