28127535 has 16 divisors (see below), whose sum is σ = 46556640. Its totient is φ = 14483840.

The previous prime is 28127531. The next prime is 28127563. The reversal of 28127535 is 53572182.

It is not a de Polignac number, because 28127535 - 2² = 28127531 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 28127496 and 28127505.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28127531) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 31896 + ... + 32765.

It is an arithmetic number, because the mean of its divisors is an integer number (2909790).

Almost surely, 2^28127535 is an apocalyptic number.

28127535 is a deficient number, since it is larger than the sum of its proper divisors (18429105).

28127535 is a wasteful number, since it uses less digits than its factorization.

28127535 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64698.

The product of its digits is 16800, while the sum is 33.

The square root of 28127535 is about 5303.5398556059. The cubic root of 28127535 is about 304.1192363232.

The spelling of 28127535 in words is "twenty-eight million, one hundred twenty-seven thousand, five hundred thirty-five".