28789850 has 24 divisors (see below), whose sum is σ = 54692928. Its totient is φ = 11270000.

The previous prime is 28789847. The next prime is 28789853. The reversal of 28789850 is 5898782.

It is an interprime number because it is at equal distance from previous prime (28789847) and next prime (28789853).

It is a Harshad number since it is a multiple of its sum of digits (47).

It is a junction number, because it is equal to n+sod(n) for n = 28789795 and 28789804.

It is not an unprimeable number, because it can be changed into a prime (28789853) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3776 + ... + 8475.

It is an arithmetic number, because the mean of its divisors is an integer number (2278872).

Almost surely, 2^28789850 is an apocalyptic number.

28789850 is a deficient number, since it is larger than the sum of its proper divisors (25903078).

28789850 is a wasteful number, since it uses less digits than its factorization.

28789850 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12310 (or 12305 counting only the distinct ones).

The product of its (nonzero) digits is 322560, while the sum is 47.

The square root of 28789850 is about 5365.6173922485. The cubic root of 28789850 is about 306.4877592785.

The spelling of 28789850 in words is "twenty-eight million, seven hundred eighty-nine thousand, eight hundred fifty".