28889206 has 16 divisors (see below), whose sum is σ = 44535744. Its totient is φ = 14046984.

The previous prime is 28889153. The next prime is 28889207. The reversal of 28889206 is 60298882.

It is a Harshad number since it is a multiple of its sum of digits (43).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28889207) by changing a digit.

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, 23745 + ... + 24931.

It is an arithmetic number, because the mean of its divisors is an integer number (2783484).

Almost surely, 2^28889206 is an apocalyptic number.

28889206 is a deficient number, since it is larger than the sum of its proper divisors (15646538).

28889206 is a wasteful number, since it uses less digits than its factorization.

28889206 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1515.

The product of its (nonzero) digits is 110592, while the sum is 43.

The square root of 28889206 is about 5374.8679983791. The cubic root of 28889206 is about 306.8399254617.

The spelling of 28889206 in words is "twenty-eight million, eight hundred eighty-nine thousand, two hundred six".