28676766 has 16 divisors (see below), whose sum is σ = 59331600. Its totient is φ = 9229248.

The previous prime is 28676761. The next prime is 28676777. The reversal of 28676766 is 66767682.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28676761) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 82231 + ... + 82578.

It is an arithmetic number, because the mean of its divisors is an integer number (3708225).

Almost surely, 2^28676766 is an apocalyptic number.

28676766 is an abundant number, since it is smaller than the sum of its proper divisors (30654834).

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

28676766 is a wasteful number, since it uses less digits than its factorization.

28676766 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 164843.

The product of its digits is 1016064, while the sum is 48.

The square root of 28676766 is about 5355.0691872281. The cubic root of 28676766 is about 306.0859470652.

It can be divided in two parts, 2867676 and 6, that added together give a palindrome (2867682).

The spelling of 28676766 in words is "twenty-eight million, six hundred seventy-six thousand, seven hundred sixty-six".