28026536 has 16 divisors (see below), whose sum is σ = 52611540. Its totient is φ = 13996800.

The previous prime is 28026529. The next prime is 28026547. The reversal of 28026536 is 63562082.

It can be written as a sum of positive squares in 2 ways, for example, as 28026436 + 100 = 5294^2 + 10^2 .

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 8150 + ... + 11066.

Almost surely, 2^28026536 is an apocalyptic number.

It is an amenable number.

28026536 is a deficient number, since it is larger than the sum of its proper divisors (24585004).

28026536 is a wasteful number, since it uses less digits than its factorization.

28026536 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4124 (or 4120 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 32.

The square root of 28026536 is about 5294.0094446459. The cubic root of 28026536 is about 303.7547941912.

The spelling of 28026536 in words is "twenty-eight million, twenty-six thousand, five hundred thirty-six".