28678592 has 56 divisors (see below), whose sum is σ = 61758576. Its totient is φ = 13160448.

The previous prime is 28678591. The next prime is 28678597. The reversal of 28678592 is 29587682.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28678591) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 46478 + ... + 47090.

Almost surely, 2^28678592 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28678592, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30879288).

28678592 is an abundant number, since it is smaller than the sum of its proper divisors (33079984).

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

28678592 is a wasteful number, since it uses less digits than its factorization.

28678592 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 685 (or 675 counting only the distinct ones).

The product of its digits is 483840, while the sum is 47.

The square root of 28678592 is about 5355.2396771760. The cubic root of 28678592 is about 306.0924436262.

The spelling of 28678592 in words is "twenty-eight million, six hundred seventy-eight thousand, five hundred ninety-two".