28092039 has 32 divisors (see below), whose sum is σ = 41126400. Its totient is φ = 17001600.

The previous prime is 28092037. The next prime is 28092091. The reversal of 28092039 is 93029082.

It is not a de Polignac number, because 28092039 - 2¹ = 28092037 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28092037) 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 31 ways as a sum of consecutive naturals, for example, 202032 + ... + 202170.

It is an arithmetic number, because the mean of its divisors is an integer number (1285200).

Almost surely, 2^28092039 is an apocalyptic number.

28092039 is a gapful number since it is divisible by the number (29) formed by its first and last digit.

28092039 is a deficient number, since it is larger than the sum of its proper divisors (13034361).

28092039 is a wasteful number, since it uses less digits than its factorization.

28092039 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 295.

The product of its (nonzero) digits is 7776, while the sum is 33.

The square root of 28092039 is about 5300.1923550000. The cubic root of 28092039 is about 303.9912530667.

Adding to 28092039 its reverse (93029082), we get a palindrome (121121121).

The spelling of 28092039 in words is "twenty-eight million, ninety-two thousand, thirty-nine".