28488766 has 12 divisors (see below), whose sum is σ = 44673552. Its totient is φ = 13624556.

The previous prime is 28488731. The next prime is 28488773. The reversal of 28488766 is 66788482.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 12406 + ... + 14521.

It is an arithmetic number, because the mean of its divisors is an integer number (3722796).

Almost surely, 2^28488766 is an apocalyptic number.

28488766 is a deficient number, since it is larger than the sum of its proper divisors (16184786).

28488766 is a wasteful number, since it uses less digits than its factorization.

28488766 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26975 (or 26952 counting only the distinct ones).

The product of its digits is 1032192, while the sum is 49.

The square root of 28488766 is about 5337.4868618105. The cubic root of 28488766 is about 305.4155975569.

The spelling of 28488766 in words is "twenty-eight million, four hundred eighty-eight thousand, seven hundred sixty-six".