28850189 has 8 divisors (see below), whose sum is σ = 30419040. Its totient is φ = 27286416.

The previous prime is 28850177. The next prime is 28850201. The reversal of 28850189 is 98105882.

It is an interprime number because it is at equal distance from previous prime (28850177) and next prime (28850201).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-28850189 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28850489) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18182 + ... + 19704.

It is an arithmetic number, because the mean of its divisors is an integer number (3802380).

Almost surely, 2^28850189 is an apocalyptic number.

It is an amenable number.

28850189 is a deficient number, since it is larger than the sum of its proper divisors (1568851).

28850189 is a wasteful number, since it uses less digits than its factorization.

28850189 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2539.

The product of its (nonzero) digits is 46080, while the sum is 41.

The square root of 28850189 is about 5371.2371945391. The cubic root of 28850189 is about 306.7017265892.

The spelling of 28850189 in words is "twenty-eight million, eight hundred fifty thousand, one hundred eighty-nine".