28732798 has 8 divisors (see below), whose sum is σ = 43123392. Its totient is φ = 14358336.

The previous prime is 28732789. The next prime is 28732801. The reversal of 28732798 is 89723782.

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 pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2611 + ... + 8017.

It is an arithmetic number, because the mean of its divisors is an integer number (5390424).

Almost surely, 2^28732798 is an apocalyptic number.

28732798 is a deficient number, since it is larger than the sum of its proper divisors (14390594).

28732798 is a wasteful number, since it uses less digits than its factorization.

28732798 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8066.

The product of its digits is 338688, while the sum is 46.

The square root of 28732798 is about 5360.2983125942. The cubic root of 28732798 is about 306.2851728032.

It can be divided in two parts, 2873 and 2798, that added together give a triangular number (5671 = T₁₀₆).

The spelling of 28732798 in words is "twenty-eight million, seven hundred thirty-two thousand, seven hundred ninety-eight".