28600066 has 16 divisors (see below), whose sum is σ = 47044800. Its totient is φ = 12932080.

The previous prime is 28600043. The next prime is 28600067. The reversal of 28600066 is 66000682.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (28600067) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1035 + ... + 7633.

It is an arithmetic number, because the mean of its divisors is an integer number (2940300).

Almost surely, 2^28600066 is an apocalyptic number.

28600066 is a deficient number, since it is larger than the sum of its proper divisors (18444734).

28600066 is a wasteful number, since it uses less digits than its factorization.

28600066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6809.

The product of its (nonzero) digits is 3456, while the sum is 28.

The square root of 28600066 is about 5347.9029534949. The cubic root of 28600066 is about 305.8128135937.

It can be divided in two parts, 2 and 8600066, that added together give a palindrome (8600068).

The spelling of 28600066 in words is "twenty-eight million, six hundred thousand, sixty-six".