28798799 has 8 divisors (see below), whose sum is σ = 30585600. Its totient is φ = 27022336.

The previous prime is 28798793. The next prime is 28798801. The reversal of 28798799 is 99789782.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-28798799 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28798793) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3602 + ... + 8400.

It is an arithmetic number, because the mean of its divisors is an integer number (3823200).

Almost surely, 2^28798799 is an apocalyptic number.

28798799 is a deficient number, since it is larger than the sum of its proper divisors (1786801).

28798799 is a wasteful number, since it uses less digits than its factorization.

28798799 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5169.

The product of its digits is 4572288, while the sum is 59.

The square root of 28798799 is about 5366.4512482645. The cubic root of 28798799 is about 306.5195120758.

The spelling of 28798799 in words is "twenty-eight million, seven hundred ninety-eight thousand, seven hundred ninety-nine".