28299193 has 8 divisors (see below), whose sum is σ = 30632000. Its totient is φ = 25988688.

The previous prime is 28299179. The next prime is 28299197. The reversal of 28299193 is 39199282.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-28299193 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28299197) 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, 2883 + ... + 8056.

It is an arithmetic number, because the mean of its divisors is an integer number (3829000).

Almost surely, 2^28299193 is an apocalyptic number.

It is an amenable number.

28299193 is a deficient number, since it is larger than the sum of its proper divisors (2332807).

28299193 is a wasteful number, since it uses less digits than its factorization.

28299193 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11151.

The product of its digits is 69984, while the sum is 43.

The square root of 28299193 is about 5319.6985816867. The cubic root of 28299193 is about 304.7366462717.

The spelling of 28299193 in words is "twenty-eight million, two hundred ninety-nine thousand, one hundred ninety-three".