28912852 has 12 divisors (see below), whose sum is σ = 53573940. Its totient is φ = 13606016.

The previous prime is 28912847. The next prime is 28912859. The reversal of 28912852 is 25821982.

It can be written as a sum of positive squares in 2 ways, for example, as 13278736 + 15634116 = 3644^2 + 3954^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28912859) by changing a digit.

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, 212527 + ... + 212662.

It is an arithmetic number, because the mean of its divisors is an integer number (4464495).

Almost surely, 2^28912852 is an apocalyptic number.

It is an amenable number.

28912852 is a deficient number, since it is larger than the sum of its proper divisors (24661088).

28912852 is a wasteful number, since it uses less digits than its factorization.

28912852 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 425210 (or 425208 counting only the distinct ones).

The product of its digits is 23040, while the sum is 37.

The square root of 28912852 is about 5377.0672303775. The cubic root of 28912852 is about 306.9236194454.

It can be divided in two parts, 289128 and 52, that added together give a triangular number (289180 = T₇₆₀).

The spelling of 28912852 in words is "twenty-eight million, nine hundred twelve thousand, eight hundred fifty-two".