28956099 has 4 divisors (see below), whose sum is σ = 38608136. Its totient is φ = 19304064.

The previous prime is 28956097. The next prime is 28956119. The reversal of 28956099 is 99065982.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 28956099 - 2¹ = 28956097 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28956097) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4826014 + ... + 4826019.

It is an arithmetic number, because the mean of its divisors is an integer number (9652034).

Almost surely, 2^28956099 is an apocalyptic number.

28956099 is a deficient number, since it is larger than the sum of its proper divisors (9652037).

28956099 is an equidigital number, since it uses as much as digits as its factorization.

28956099 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9652036.

The product of its (nonzero) digits is 349920, while the sum is 48.

The square root of 28956099 is about 5381.0871578149. The cubic root of 28956099 is about 307.0765723400.

The spelling of 28956099 in words is "twenty-eight million, nine hundred fifty-six thousand, ninety-nine".