28965910 has 16 divisors (see below), whose sum is σ = 52521696. Its totient is φ = 11501248.

The previous prime is 28965887. The next prime is 28965913. The reversal of 28965910 is 1956982.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28965913) 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, 9202 + ... + 11941.

It is an arithmetic number, because the mean of its divisors is an integer number (3282606).

Almost surely, 2^28965910 is an apocalyptic number.

28965910 is a deficient number, since it is larger than the sum of its proper divisors (23555786).

28965910 is a wasteful number, since it uses less digits than its factorization.

28965910 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21287.

The product of its (nonzero) digits is 38880, while the sum is 40.

The square root of 28965910 is about 5381.9986993681. The cubic root of 28965910 is about 307.1112499861. Note that the first 3 decimals are identical.

The spelling of 28965910 in words is "twenty-eight million, nine hundred sixty-five thousand, nine hundred ten".