28656982 has 4 divisors (see below), whose sum is σ = 42985476. Its totient is φ = 14328490.

The previous prime is 28656973. The next prime is 28656983. The reversal of 28656982 is 28965682.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28656983) 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 as a sum of consecutive naturals, namely, 7164244 + ... + 7164247.

It is an arithmetic number, because the mean of its divisors is an integer number (10746369).

Almost surely, 2^28656982 is an apocalyptic number.

28656982 is a deficient number, since it is larger than the sum of its proper divisors (14328494).

28656982 is a wasteful number, since it uses less digits than its factorization.

28656982 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14328493.

The product of its digits is 414720, while the sum is 46.

The square root of 28656982 is about 5353.2216468217. The cubic root of 28656982 is about 306.0155416658.

The spelling of 28656982 in words is "twenty-eight million, six hundred fifty-six thousand, nine hundred eighty-two".