28677252 has 24 divisors (see below), whose sum is σ = 67187232. Its totient is φ = 9520000.

The previous prime is 28677241. The next prime is 28677287. The reversal of 28677252 is 25277682.

It is a self number, because there is not a number n which added to its sum of digits gives 28677252.

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 7 ways as a sum of consecutive naturals, for example, 1749 + ... + 7772.

It is an arithmetic number, because the mean of its divisors is an integer number (2799468).

Almost surely, 2^28677252 is an apocalyptic number.

It is an amenable number.

28677252 is an abundant number, since it is smaller than the sum of its proper divisors (38509980).

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

28677252 is a wasteful number, since it uses less digits than its factorization.

28677252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9779 (or 9777 counting only the distinct ones).

The product of its digits is 94080, while the sum is 39.

The square root of 28677252 is about 5355.1145646008. The cubic root of 28677252 is about 306.0876761878.

The spelling of 28677252 in words is "twenty-eight million, six hundred seventy-seven thousand, two hundred fifty-two".