28438876 has 12 divisors (see below), whose sum is σ = 49834008. Its totient is φ = 14200592.

The previous prime is 28438853. The next prime is 28438889. The reversal of 28438876 is 67883482.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 991 + ... + 7606.

It is an arithmetic number, because the mean of its divisors is an integer number (4152834).

Almost surely, 2^28438876 is an apocalyptic number.

It is an amenable number.

28438876 is a deficient number, since it is larger than the sum of its proper divisors (21395132).

28438876 is a wasteful number, since it uses less digits than its factorization.

28438876 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9428 (or 9426 counting only the distinct ones).

The product of its digits is 516096, while the sum is 46.

The square root of 28438876 is about 5332.8112661147. The cubic root of 28438876 is about 305.2372104299.

The spelling of 28438876 in words is "twenty-eight million, four hundred thirty-eight thousand, eight hundred seventy-six".