28299995 has 8 divisors (see below), whose sum is σ = 33994080. Its totient is φ = 22617280.

The previous prime is 28299979. The next prime is 28300001. The reversal of 28299995 is 59999282.

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

It is not a de Polignac number, because 28299995 - 2⁴ = 28299979 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4250 + ... + 8640.

It is an arithmetic number, because the mean of its divisors is an integer number (4249260).

Almost surely, 2^28299995 is an apocalyptic number.

28299995 is a deficient number, since it is larger than the sum of its proper divisors (5694085).

28299995 is a wasteful number, since it uses less digits than its factorization.

28299995 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5685.

The product of its digits is 1049760, while the sum is 53.

The square root of 28299995 is about 5319.7739613634. The cubic root of 28299995 is about 304.7395249931.

The spelling of 28299995 in words is "twenty-eight million, two hundred ninety-nine thousand, nine hundred ninety-five".