28196616 has 64 divisors (see below), whose sum is σ = 82298880. Its totient is φ = 7882560.

The previous prime is 28196603. The next prime is 28196621. The reversal of 28196616 is 61669182.

It is a hoax number, since the sum of its digits (39) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 6111 + ... + 9681.

It is an arithmetic number, because the mean of its divisors is an integer number (1285920).

Almost surely, 2^28196616 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 28196616, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (41149440).

28196616 is an abundant number, since it is smaller than the sum of its proper divisors (54102264).

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

28196616 is a wasteful number, since it uses less digits than its factorization.

28196616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3634 (or 3630 counting only the distinct ones).

The product of its digits is 31104, while the sum is 39.

The square root of 28196616 is about 5310.0485873483. The cubic root of 28196616 is about 304.3680042439.

The spelling of 28196616 in words is "twenty-eight million, one hundred ninety-six thousand, six hundred sixteen".