28719350 has 72 divisors (see below), whose sum is σ = 60558624. Its totient is φ = 10120000.

The previous prime is 28719343. The next prime is 28719373. The reversal of 28719350 is 5391782.

It is a self number, because there is not a number n which added to its sum of digits gives 28719350.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 284300 + ... + 284400.

It is an arithmetic number, because the mean of its divisors is an integer number (841092).

Almost surely, 2^28719350 is an apocalyptic number.

28719350 is an abundant number, since it is smaller than the sum of its proper divisors (31839274).

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

28719350 is a wasteful number, since it uses less digits than its factorization.

28719350 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 182 (or 166 counting only the distinct ones).

The product of its (nonzero) digits is 15120, while the sum is 35.

The square root of 28719350 is about 5359.0437579852. The cubic root of 28719350 is about 306.2373811266.

It can be divided in two parts, 2871 and 9350, that added together give a palindrome (12221).

The spelling of 28719350 in words is "twenty-eight million, seven hundred nineteen thousand, three hundred fifty".