28496899 has 8 divisors (see below), whose sum is σ = 29242368. Its totient is φ = 27757320.

The previous prime is 28496893. The next prime is 28496911. The reversal of 28496899 is 99869482.

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

It is a cyclic number.

It is not a de Polignac number, because 28496899 - 2¹⁵ = 28464131 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28496893) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9334 + ... + 12004.

It is an arithmetic number, because the mean of its divisors is an integer number (3655296).

Almost surely, 2^28496899 is an apocalyptic number.

28496899 is a deficient number, since it is larger than the sum of its proper divisors (745469).

28496899 is a wasteful number, since it uses less digits than its factorization.

28496899 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2945.

The product of its digits is 2239488, while the sum is 55.

The square root of 28496899 is about 5338.2486828547. The cubic root of 28496899 is about 305.4446582367. Note that the first 3 decimals are identical.

The spelling of 28496899 in words is "twenty-eight million, four hundred ninety-six thousand, eight hundred ninety-nine".