28099299 has 8 divisors (see below), whose sum is σ = 38674432. Its totient is φ = 18128520.

The previous prime is 28099297. The next prime is 28099301. The reversal of 28099299 is 99299082.

It is an interprime number because it is at equal distance from previous prime (28099297) and next prime (28099301).

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

It is not a de Polignac number, because 28099299 - 2¹ = 28099297 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28099297) 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, 150979 + ... + 151164.

It is an arithmetic number, because the mean of its divisors is an integer number (4834304).

Almost surely, 2^28099299 is an apocalyptic number.

28099299 is a deficient number, since it is larger than the sum of its proper divisors (10575133).

28099299 is a wasteful number, since it uses less digits than its factorization.

28099299 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 302177.

The product of its (nonzero) digits is 209952, while the sum is 48.

The square root of 28099299 is about 5300.8771915599. The cubic root of 28099299 is about 304.0174382598.

The spelling of 28099299 in words is "twenty-eight million, ninety-nine thousand, two hundred ninety-nine".