28876650 has 144 divisors (see below), whose sum is σ = 82723872. Its totient is φ = 6652800.

The previous prime is 28876649. The next prime is 28876651. The reversal of 28876650 is 5667882.

It is an interprime number because it is at equal distance from previous prime (28876649) and next prime (28876651).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28876651) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 671529 + ... + 671571.

Almost surely, 2^28876650 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28876650, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (41361936).

28876650 is an abundant number, since it is smaller than the sum of its proper divisors (53847222).

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

28876650 is a wasteful number, since it uses less digits than its factorization.

28876650 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 117 (or 101 counting only the distinct ones).

The product of its (nonzero) digits is 161280, while the sum is 42.

The square root of 28876650 is about 5373.6998427527. The cubic root of 28876650 is about 306.7954654836.

It can be divided in two parts, 28 and 876650, that added together give a palindrome (876678).

The spelling of 28876650 in words is "twenty-eight million, eight hundred seventy-six thousand, six hundred fifty".