28785196 has 12 divisors (see below), whose sum is σ = 54953640. Its totient is φ = 13084160.

The previous prime is 28785193. The next prime is 28785221. The reversal of 28785196 is 69158782.

It is not an unprimeable number, because it can be changed into a prime (28785191) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 327061 + ... + 327148.

It is an arithmetic number, because the mean of its divisors is an integer number (4579470).

Almost surely, 2^28785196 is an apocalyptic number.

It is an amenable number.

28785196 is a deficient number, since it is larger than the sum of its proper divisors (26168444).

28785196 is a wasteful number, since it uses less digits than its factorization.

28785196 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 654224 (or 654222 counting only the distinct ones).

The product of its digits is 241920, while the sum is 46.

The square root of 28785196 is about 5365.1836874426. The cubic root of 28785196 is about 306.4712433779.

The spelling of 28785196 in words is "twenty-eight million, seven hundred eighty-five thousand, one hundred ninety-six".