28889103 has 8 divisors (see below), whose sum is σ = 40784688. Its totient is φ = 18126464.

The previous prime is 28889059. The next prime is 28889129. The reversal of 28889103 is 30198882.

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

It is a cyclic number.

It is not a de Polignac number, because 28889103 - 2¹³ = 28880911 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28889153) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 283176 + ... + 283277.

It is an arithmetic number, because the mean of its divisors is an integer number (5098086).

Almost surely, 2^28889103 is an apocalyptic number.

28889103 is a deficient number, since it is larger than the sum of its proper divisors (11895585).

28889103 is a wasteful number, since it uses less digits than its factorization.

28889103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 566473.

The product of its (nonzero) digits is 27648, while the sum is 39.

The square root of 28889103 is about 5374.8584167399. The cubic root of 28889103 is about 306.8395607979.

The spelling of 28889103 in words is "twenty-eight million, eight hundred eighty-nine thousand, one hundred three".