28872842 has 16 divisors (see below), whose sum is σ = 44996352. Its totient is φ = 13880160.

The previous prime is 28872827. The next prime is 28872847. The reversal of 28872842 is 24827882.

It is a self number, because there is not a number n which added to its sum of digits gives 28872842.

It is not an unprimeable number, because it can be changed into a prime (28872847) 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, 8678 + ... + 11534.

It is an arithmetic number, because the mean of its divisors is an integer number (2812272).

Almost surely, 2^28872842 is an apocalyptic number.

28872842 is a deficient number, since it is larger than the sum of its proper divisors (16123510).

28872842 is a wasteful number, since it uses less digits than its factorization.

28872842 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3053.

The product of its digits is 114688, while the sum is 41.

The square root of 28872842 is about 5373.3455128067. The cubic root of 28872842 is about 306.7819790567.

The spelling of 28872842 in words is "twenty-eight million, eight hundred seventy-two thousand, eight hundred forty-two".