28677912 has 32 divisors (see below), whose sum is σ = 75913200. Its totient is φ = 8996864.

The previous prime is 28677907. The next prime is 28677919. The reversal of 28677912 is 21977682.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28677919) 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 7 ways as a sum of consecutive naturals, for example, 34737 + ... + 35552.

Almost surely, 2^28677912 is an apocalyptic number.

It is an amenable number.

28677912 is an abundant number, since it is smaller than the sum of its proper divisors (47235288).

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

28677912 is a wasteful number, since it uses less digits than its factorization.

28677912 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70315 (or 70311 counting only the distinct ones).

The product of its digits is 84672, while the sum is 42.

The square root of 28677912 is about 5355.1761875778. The cubic root of 28677912 is about 306.0900243476.

The spelling of 28677912 in words is "twenty-eight million, six hundred seventy-seven thousand, nine hundred twelve".