28470299 has 16 divisors (see below), whose sum is σ = 33838560. Its totient is φ = 23612160.

The previous prime is 28470293. The next prime is 28470301. The reversal of 28470299 is 99207482.

It is not a de Polignac number, because 28470299 - 2⁴ = 28470283 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28470293) 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 15 ways as a sum of consecutive naturals, for example, 11609 + ... + 13845.

It is an arithmetic number, because the mean of its divisors is an integer number (2114910).

Almost surely, 2^28470299 is an apocalyptic number.

28470299 is a deficient number, since it is larger than the sum of its proper divisors (5368261).

28470299 is a wasteful number, since it uses less digits than its factorization.

28470299 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2350.

The product of its (nonzero) digits is 72576, while the sum is 41.

The square root of 28470299 is about 5335.7566473744. The cubic root of 28470299 is about 305.3495910832.

The spelling of 28470299 in words is "twenty-eight million, four hundred seventy thousand, two hundred ninety-nine".