28799493 has 8 divisors (see below), whose sum is σ = 39050400. Its totient is φ = 18874128.

The previous prime is 28799467. The next prime is 28799509. The reversal of 28799493 is 39499782.

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

It is not a de Polignac number, because 28799493 - 2⁵ = 28799461 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28792493) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 81178 + ... + 81531.

It is an arithmetic number, because the mean of its divisors is an integer number (4881300).

Almost surely, 2^28799493 is an apocalyptic number.

It is an amenable number.

28799493 is a deficient number, since it is larger than the sum of its proper divisors (10250907).

28799493 is a wasteful number, since it uses less digits than its factorization.

28799493 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 162771.

The product of its digits is 979776, while the sum is 51.

The square root of 28799493 is about 5366.5159088556. The cubic root of 28799493 is about 306.5219742483.

It can be divided in two parts, 28799 and 493, that added together give a palindrome (29292).

The spelling of 28799493 in words is "twenty-eight million, seven hundred ninety-nine thousand, four hundred ninety-three".