28799678 has 12 divisors (see below), whose sum is σ = 43578600. Its totient is φ = 14274216.

The previous prime is 28799669. The next prime is 28799681. The reversal of 28799678 is 87699782.

It is a Curzon number.

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 5 ways as a sum of consecutive naturals, for example, 106928 + ... + 107196.

It is an arithmetic number, because the mean of its divisors is an integer number (3631550).

Almost surely, 2^28799678 is an apocalyptic number.

28799678 is a deficient number, since it is larger than the sum of its proper divisors (14778922).

28799678 is an equidigital number, since it uses as much as digits as its factorization.

28799678 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 739 (or 470 counting only the distinct ones).

The product of its digits is 3048192, while the sum is 56.

The square root of 28799678 is about 5366.5331453369. The cubic root of 28799678 is about 306.5226305845.

The spelling of 28799678 in words is "twenty-eight million, seven hundred ninety-nine thousand, six hundred seventy-eight".