28122535 has 8 divisors (see below), whose sum is σ = 38568096. Its totient is φ = 19284000.

The previous prime is 28122533. The next prime is 28122571. The reversal of 28122535 is 53522182.

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

It is not a de Polignac number, because 28122535 - 2¹ = 28122533 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28122533) 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, 401716 + ... + 401785.

It is an arithmetic number, because the mean of its divisors is an integer number (4821012).

Almost surely, 2^28122535 is an apocalyptic number.

28122535 is a deficient number, since it is larger than the sum of its proper divisors (10445561).

28122535 is an equidigital number, since it uses as much as digits as its factorization.

28122535 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 803513.

The product of its digits is 4800, while the sum is 28.

The square root of 28122535 is about 5303.0684513779. The cubic root of 28122535 is about 304.1012149988.

The spelling of 28122535 in words is "twenty-eight million, one hundred twenty-two thousand, five hundred thirty-five".