28083670 has 16 divisors (see below), whose sum is σ = 50621760. Its totient is φ = 11217664.

The previous prime is 28083641. The next prime is 28083673. The reversal of 28083670 is 7638082.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28083673) 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 in 7 ways as a sum of consecutive naturals, for example, 7779 + ... + 10801.

It is an arithmetic number, because the mean of its divisors is an integer number (3163860).

Almost surely, 2^28083670 is an apocalyptic number.

28083670 is a deficient number, since it is larger than the sum of its proper divisors (22538090).

28083670 is a wasteful number, since it uses less digits than its factorization.

28083670 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3959.

The product of its (nonzero) digits is 16128, while the sum is 34.

The square root of 28083670 is about 5299.4027965423. The cubic root of 28083670 is about 303.9610623606.

The spelling of 28083670 in words is "twenty-eight million, eighty-three thousand, six hundred seventy".