28299073 has 8 divisors (see below), whose sum is σ = 30927456. Its totient is φ = 25680000.

The previous prime is 28299053. The next prime is 28299091. The reversal of 28299073 is 37099282.

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 28299073 - 2⁹ = 28298561 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28299053) 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, 5073 + ... + 9073.

It is an arithmetic number, because the mean of its divisors is an integer number (3865932).

Almost surely, 2^28299073 is an apocalyptic number.

It is an amenable number.

28299073 is a deficient number, since it is larger than the sum of its proper divisors (2628383).

28299073 is a wasteful number, since it uses less digits than its factorization.

28299073 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4655.

The product of its (nonzero) digits is 54432, while the sum is 40.

The square root of 28299073 is about 5319.6873028403. The cubic root of 28299073 is about 304.7362155356.

The spelling of 28299073 in words is "twenty-eight million, two hundred ninety-nine thousand, seventy-three".