28879926 has 8 divisors (see below), whose sum is σ = 57759864. Its totient is φ = 9626640.

The previous prime is 28879913. The next prime is 28879931. The reversal of 28879926 is 62997882.

It is a happy number.

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

28879926 is an admirable number.

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 3 ways as a sum of consecutive naturals, for example, 2406655 + ... + 2406666.

It is an arithmetic number, because the mean of its divisors is an integer number (7219983).

Almost surely, 2^28879926 is an apocalyptic number.

28879926 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

28879926 is a wasteful number, since it uses less digits than its factorization.

28879926 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4813326.

The product of its digits is 870912, while the sum is 51.

The square root of 28879926 is about 5374.0046520263. The cubic root of 28879926 is about 306.8070668287.

The spelling of 28879926 in words is "twenty-eight million, eight hundred seventy-nine thousand, nine hundred twenty-six".