28330617 has 8 divisors (see below), whose sum is σ = 43170496. Its totient is φ = 16188912.

The previous prime is 28330609. The next prime is 28330649. The reversal of 28330617 is 71603382.

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

It is not a de Polignac number, because 28330617 - 2³ = 28330609 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28330667) 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, 674518 + ... + 674559.

It is an arithmetic number, because the mean of its divisors is an integer number (5396312).

Almost surely, 2^28330617 is an apocalyptic number.

It is an amenable number.

28330617 is a deficient number, since it is larger than the sum of its proper divisors (14839879).

28330617 is a wasteful number, since it uses less digits than its factorization.

28330617 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1349087.

The product of its (nonzero) digits is 6048, while the sum is 30.

The square root of 28330617 is about 5322.6513130206. The cubic root of 28330617 is about 304.8493998059.

Adding to 28330617 its reverse (71603382), we get a palindrome (99933999).

The spelling of 28330617 in words is "twenty-eight million, three hundred thirty thousand, six hundred seventeen".