28888894 has 8 divisors (see below), whose sum is σ = 43434720. Its totient is φ = 14410656.

The previous prime is 28888891. The next prime is 28888903. The reversal of 28888894 is 49888882.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28888891) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15814 + ... + 17545.

It is an arithmetic number, because the mean of its divisors is an integer number (5429340).

Almost surely, 2^28888894 is an apocalyptic number.

28888894 is a deficient number, since it is larger than the sum of its proper divisors (14545826).

28888894 is a wasteful number, since it uses less digits than its factorization.

28888894 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33794.

The product of its digits is 2359296, while the sum is 55.

The square root of 28888894 is about 5374.8389743322. The cubic root of 28888894 is about 306.8388208462.

The spelling of 28888894 in words is "twenty-eight million, eight hundred eighty-eight thousand, eight hundred ninety-four".