28986196 has 12 divisors (see below), whose sum is σ = 52475220. Its totient is φ = 13993280.

The previous prime is 28986151. The next prime is 28986211. The reversal of 28986196 is 69168982.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 18835600 + 10150596 = 4340^2 + 3186^2 .

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 124825 + ... + 125056.

It is an arithmetic number, because the mean of its divisors is an integer number (4372935).

Almost surely, 2^28986196 is an apocalyptic number.

It is an amenable number.

28986196 is a deficient number, since it is larger than the sum of its proper divisors (23489024).

28986196 is a wasteful number, since it uses less digits than its factorization.

28986196 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 249914 (or 249912 counting only the distinct ones).

The product of its digits is 373248, while the sum is 49.

The square root of 28986196 is about 5383.8829853555. The cubic root of 28986196 is about 307.1829274050.

The spelling of 28986196 in words is "twenty-eight million, nine hundred eighty-six thousand, one hundred ninety-six".