28671300 has 288 divisors, whose sum is σ = 110826240. Its totient is φ = 6220800.

The previous prime is 28671277. The next prime is 28671301. The reversal of 28671300 is 317682.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28671301) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 699280 + ... + 699320.

Almost surely, 2^28671300 is an apocalyptic number.

28671300 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 28671300, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (55413120).

28671300 is an abundant number, since it is smaller than the sum of its proper divisors (82154940).

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

28671300 is a wasteful number, since it uses less digits than its factorization.

28671300 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108 (or 95 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 27.

The square root of 28671300 is about 5354.5588053546. The cubic root of 28671300 is about 306.0664984275.

Adding to 28671300 its reverse (317682), we get a palindrome (28988982).

The spelling of 28671300 in words is "twenty-eight million, six hundred seventy-one thousand, three hundred".