28092657 has 16 divisors (see below), whose sum is σ = 38634752. Its totient is φ = 18144000.

The previous prime is 28092643. The next prime is 28092661. The reversal of 28092657 is 75629082.

It is a happy number.

It is not a de Polignac number, because 28092657 - 2¹¹ = 28090609 is a prime.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28094657) 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 15 ways as a sum of consecutive naturals, for example, 37032 + ... + 37782.

It is an arithmetic number, because the mean of its divisors is an integer number (2414672).

Almost surely, 2^28092657 is an apocalyptic number.

It is an amenable number.

28092657 is a deficient number, since it is larger than the sum of its proper divisors (10542095).

28092657 is a wasteful number, since it uses less digits than its factorization.

28092657 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1128.

The product of its (nonzero) digits is 60480, while the sum is 39.

The square root of 28092657 is about 5300.2506544502. The cubic root of 28092657 is about 303.9934822298.

The spelling of 28092657 in words is "twenty-eight million, ninety-two thousand, six hundred fifty-seven".