28959892 has 24 divisors (see below), whose sum is σ = 55118336. Its totient is φ = 13233888.

The previous prime is 28959881. The next prime is 28959907. The reversal of 28959892 is 29895982.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (52).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2653 + ... + 8059.

Almost surely, 2^28959892 is an apocalyptic number.

It is an amenable number.

28959892 is a deficient number, since it is larger than the sum of its proper divisors (26158444).

28959892 is a wasteful number, since it uses less digits than its factorization.

28959892 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5527 (or 5525 counting only the distinct ones).

The product of its digits is 933120, while the sum is 52.

The square root of 28959892 is about 5381.4395843492. The cubic root of 28959892 is about 307.0899798849.

The spelling of 28959892 in words is "twenty-eight million, nine hundred fifty-nine thousand, eight hundred ninety-two".