28879876 has 9 divisors (see below), whose sum is σ = 50558599. Its totient is φ = 14434564.

The previous prime is 28879847. The next prime is 28879883. The reversal of 28879876 is 67897882.

The square root of 28879876 is 5374.

It is a perfect power (a square), and thus also a powerful number.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 9405 + ... + 12091.

Almost surely, 2^28879876 is an apocalyptic number.

28879876 is the 5374-th square number.

It is an amenable number.

28879876 is a deficient number, since it is larger than the sum of its proper divisors (21678723).

28879876 is an frugal number, since it uses more digits than its factorization.

28879876 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5378 (or 2689 counting only the distinct ones).

The product of its digits is 2709504, while the sum is 55.

The cubic root of 28879876 is about 306.8068897696.

The spelling of 28879876 in words is "twenty-eight million, eight hundred seventy-nine thousand, eight hundred seventy-six".