28819750 has 16 divisors (see below), whose sum is σ = 53951040. Its totient is φ = 11527800.

The previous prime is 28819741. The next prime is 28819783. The reversal of 28819750 is 5791882.

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 7 ways as a sum of consecutive naturals, for example, 57390 + ... + 57889.

It is an arithmetic number, because the mean of its divisors is an integer number (3371940).

Almost surely, 2^28819750 is an apocalyptic number.

28819750 is a deficient number, since it is larger than the sum of its proper divisors (25131290).

28819750 is a wasteful number, since it uses less digits than its factorization.

28819750 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115296 (or 115286 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 40.

The square root of 28819750 is about 5368.4029282460. The cubic root of 28819750 is about 306.5938245918.

The spelling of 28819750 in words is "twenty-eight million, eight hundred nineteen thousand, seven hundred fifty".