28669116 has 36 divisors (see below), whose sum is σ = 77817768. Its totient is φ = 8191008.

The previous prime is 28669111. The next prime is 28669169. The reversal of 28669116 is 61196682.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28669111) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 23791 + ... + 24966.

Almost surely, 2^28669116 is an apocalyptic number.

It is an amenable number.

28669116 is an abundant number, since it is smaller than the sum of its proper divisors (49148652).

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

28669116 is a wasteful number, since it uses less digits than its factorization.

28669116 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48778 (or 48769 counting only the distinct ones).

The product of its digits is 31104, while the sum is 39.

The square root of 28669116 is about 5354.3548630998. The cubic root of 28669116 is about 306.0587268207.

The spelling of 28669116 in words is "twenty-eight million, six hundred sixty-nine thousand, one hundred sixteen".