28613300 has 36 divisors (see below), whose sum is σ = 62727756. Its totient is φ = 11328000.

The previous prime is 28613267. The next prime is 28613317. The reversal of 28613300 is 331682.

It can be written as a sum of positive squares in 6 ways, for example, as 268324 + 28344976 = 518^2 + 5324^2 .

It is a congruent number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 8684 + ... + 11516.

Almost surely, 2^28613300 is an apocalyptic number.

28613300 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 28613300, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31363878).

28613300 is an abundant number, since it is smaller than the sum of its proper divisors (34114456).

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

28613300 is a wasteful number, since it uses less digits than its factorization.

28613300 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2948 (or 2941 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 23.

The square root of 28613300 is about 5349.1401178133. The cubic root of 28613300 is about 305.8599755210.

Adding to 28613300 its reverse (331682), we get a palindrome (28944982).

The spelling of 28613300 in words is "twenty-eight million, six hundred thirteen thousand, three hundred".