28867104 has 240 divisors, whose sum is σ = 101965248. Its totient is φ = 7838208.

The previous prime is 28867081. The next prime is 28867117. The reversal of 28867104 is 40176882.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 671307 + ... + 671349.

Almost surely, 2^28867104 is an apocalyptic number.

28867104 is a gapful number since it is divisible by the number (24) 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 28867104, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (50982624).

28867104 is an abundant number, since it is smaller than the sum of its proper divisors (73098144).

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

28867104 is a wasteful number, since it uses less digits than its factorization.

28867104 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 109 (or 92 counting only the distinct ones).

The product of its (nonzero) digits is 21504, while the sum is 36.

The square root of 28867104 is about 5372.8115544843. The cubic root of 28867104 is about 306.7616550948.

The spelling of 28867104 in words is "twenty-eight million, eight hundred sixty-seven thousand, one hundred four".