28609199 has 8 divisors (see below), whose sum is σ = 28902720. Its totient is φ = 28317600.

The previous prime is 28609169. The next prime is 28609213. The reversal of 28609199 is 99190682.

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 28609199 - 2²⁰ = 27560623 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28609129) 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, 61829 + ... + 62289.

It is an arithmetic number, because the mean of its divisors is an integer number (3612840).

Almost surely, 2^28609199 is an apocalyptic number.

28609199 is a deficient number, since it is larger than the sum of its proper divisors (293521).

28609199 is a wasteful number, since it uses less digits than its factorization.

28609199 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 961.

The product of its (nonzero) digits is 69984, while the sum is 44.

The square root of 28609199 is about 5348.7567714376. The cubic root of 28609199 is about 305.8453623669.

The spelling of 28609199 in words is "twenty-eight million, six hundred nine thousand, one hundred ninety-nine".