28853532 has 18 divisors (see below), whose sum is σ = 72935408. Its totient is φ = 9617832.

The previous prime is 28853527. The next prime is 28853543. The reversal of 28853532 is 23535882.

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 801487 = 28853532 / (2 + 8 + 8 + 5 + 3 + 5 + 3 + 2).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 400708 + ... + 400779.

Almost surely, 2^28853532 is an apocalyptic number.

It is an amenable number.

28853532 is an abundant number, since it is smaller than the sum of its proper divisors (44081876).

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

28853532 is a wasteful number, since it uses less digits than its factorization.

28853532 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 801497 (or 801492 counting only the distinct ones).

The product of its digits is 57600, while the sum is 36.

The square root of 28853532 is about 5371.5483801228. The cubic root of 28853532 is about 306.7135724304.

The spelling of 28853532 in words is "twenty-eight million, eight hundred fifty-three thousand, five hundred thirty-two".