28872950 has 24 divisors (see below), whose sum is σ = 55158672. Its totient is φ = 11236320.

The previous prime is 28872917. The next prime is 28872967. The reversal of 28872950 is 5927882.

It is a happy number.

It is a Smith number, since the sum of its digits (41) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 28872898 and 28872907.

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, 5954 + ... + 9653.

It is an arithmetic number, because the mean of its divisors is an integer number (2298278).

Almost surely, 2^28872950 is an apocalyptic number.

28872950 is a deficient number, since it is larger than the sum of its proper divisors (26285722).

28872950 is a wasteful number, since it uses less digits than its factorization.

28872950 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15656 (or 15651 counting only the distinct ones).

The product of its (nonzero) digits is 80640, while the sum is 41.

The square root of 28872950 is about 5373.3555624023. The cubic root of 28872950 is about 306.7823615663.

The spelling of 28872950 in words is "twenty-eight million, eight hundred seventy-two thousand, nine hundred fifty".