28755675 has 96 divisors (see below), whose sum is σ = 59371200. Its totient is φ = 13547520.

The previous prime is 28755667. The next prime is 28755677. The reversal of 28755675 is 57655782.

28755675 is a `hidden beast` number, since 2 + 87 + 5 + 567 + 5 = 666.

28755675 is nontrivially palindromic in base 2.

It is not a de Polignac number, because 28755675 - 2³ = 28755667 is a prime.

It is a super-3 number, since 3×28755675³ (a number of 23 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 28755675.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28755677) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 254419 + ... + 254531.

It is an arithmetic number, because the mean of its divisors is an integer number (618450).

Almost surely, 2^28755675 is an apocalyptic number.

28755675 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

28755675 is an abundant number, since it is smaller than the sum of its proper divisors (30615525).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

28755675 is a wasteful number, since it uses less digits than its factorization.

28755675 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 174 (or 163 counting only the distinct ones).

The product of its digits is 588000, while the sum is 45.

The square root of 28755675 is about 5362.4318177484. The cubic root of 28755675 is about 306.3664391328.

28755675 divided by its sum of digits (45) gives a triangular number (639015 = T₁₁₃₀).

The spelling of 28755675 in words is "twenty-eight million, seven hundred fifty-five thousand, six hundred seventy-five".