28875898 has 8 divisors (see below), whose sum is σ = 44048160. Its totient is φ = 14193180.

The previous prime is 28875893. The next prime is 28875929. The reversal of 28875898 is 89857882.

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

It is not an unprimeable number, because it can be changed into a prime (28875893) 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, 122238 + ... + 122473.

It is an arithmetic number, because the mean of its divisors is an integer number (5506020).

Almost surely, 2^28875898 is an apocalyptic number.

28875898 is a deficient number, since it is larger than the sum of its proper divisors (15172262).

28875898 is a wasteful number, since it uses less digits than its factorization.

28875898 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 244772.

The product of its digits is 2580480, while the sum is 55.

The square root of 28875898 is about 5373.6298718836. The cubic root of 28875898 is about 306.7928022916.

The spelling of 28875898 in words is "twenty-eight million, eight hundred seventy-five thousand, eight hundred ninety-eight".