28556600 has 96 divisors (see below), whose sum is σ = 72517680. Its totient is φ = 10414080.

The previous prime is 28556599. The next prime is 28556603. The reversal of 28556600 is 665582.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28556603) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 125687 + ... + 125913.

Almost surely, 2^28556600 is an apocalyptic number.

28556600 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28556600, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (36258840).

28556600 is an abundant number, since it is smaller than the sum of its proper divisors (43961080).

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

28556600 is a wasteful number, since it uses less digits than its factorization.

28556600 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 297 (or 288 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 32.

The square root of 28556600 is about 5343.8375723819. The cubic root of 28556600 is about 305.6578116280.

The spelling of 28556600 in words is "twenty-eight million, five hundred fifty-six thousand, six hundred".