28232359 has 4 divisors (see below), whose sum is σ = 29893104. Its totient is φ = 26571616.

The previous prime is 28232333. The next prime is 28232387. The reversal of 28232359 is 95323282.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 28232359 - 2⁵ = 28232327 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 (28232959) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 830347 + ... + 830380.

It is an arithmetic number, because the mean of its divisors is an integer number (7473276).

Almost surely, 2^28232359 is an apocalyptic number.

28232359 is a deficient number, since it is larger than the sum of its proper divisors (1660745).

28232359 is a wasteful number, since it uses less digits than its factorization.

28232359 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1660744.

The product of its digits is 25920, while the sum is 34.

The square root of 28232359 is about 5313.4131215256. The cubic root of 28232359 is about 304.4965590551.

The spelling of 28232359 in words is "twenty-eight million, two hundred thirty-two thousand, three hundred fifty-nine".