28678982 has 8 divisors (see below), whose sum is σ = 43042752. Its totient is φ = 14331400.

The previous prime is 28678973. The next prime is 28678997. The reversal of 28678982 is 28987682.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 28678982.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2507 + ... + 7977.

It is an arithmetic number, because the mean of its divisors is an integer number (5380344).

Almost surely, 2^28678982 is an apocalyptic number.

28678982 is a deficient number, since it is larger than the sum of its proper divisors (14363770).

28678982 is a wasteful number, since it uses less digits than its factorization.

28678982 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8094.

The product of its digits is 774144, while the sum is 50.

The square root of 28678982 is about 5355.2760899883. The cubic root of 28678982 is about 306.0938311363.

The spelling of 28678982 in words is "twenty-eight million, six hundred seventy-eight thousand, nine hundred eighty-two".