28060904 has 32 divisors (see below), whose sum is σ = 53913600. Its totient is φ = 13688640.

The previous prime is 28060867. The next prime is 28060909. The reversal of 28060904 is 40906082.

It is not an unprimeable number, because it can be changed into a prime (28060909) 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, 71942 + ... + 72330.

It is an arithmetic number, because the mean of its divisors is an integer number (1684800).

Almost surely, 2^28060904 is an apocalyptic number.

It is an amenable number.

28060904 is a deficient number, since it is larger than the sum of its proper divisors (25852696).

28060904 is a wasteful number, since it uses less digits than its factorization.

28060904 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 593 (or 589 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 29.

The square root of 28060904 is about 5297.2543831687. The cubic root of 28060904 is about 303.8789049089.

Adding to 28060904 its reverse (40906082), we get a palindrome (68966986).

The spelling of 28060904 in words is "twenty-eight million, sixty thousand, nine hundred four".