28880806 has 8 divisors (see below), whose sum is σ = 43344144. Its totient is φ = 14432760.

The previous prime is 28880783. The next prime is 28880827. The reversal of 28880806 is 60808882.

It is a sphenic number, since it is the product of 3 distinct primes.

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, 4711 + ... + 8941.

It is an arithmetic number, because the mean of its divisors is an integer number (5418018).

Almost surely, 2^28880806 is an apocalyptic number.

28880806 is a deficient number, since it is larger than the sum of its proper divisors (14463338).

28880806 is a wasteful number, since it uses less digits than its factorization.

28880806 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7646.

The product of its (nonzero) digits is 49152, while the sum is 40.

The square root of 28880806 is about 5374.0865270295. The cubic root of 28880806 is about 306.8101830356.

The spelling of 28880806 in words is "twenty-eight million, eight hundred eighty thousand, eight hundred six".