28609382 has 8 divisors (see below), whose sum is σ = 43011000. Its totient is φ = 14272384.

The previous prime is 28609381. The next prime is 28609393. The reversal of 28609382 is 28390682.

It is a happy number.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28609381) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15032 + ... + 16827.

It is an arithmetic number, because the mean of its divisors is an integer number (5376375).

Almost surely, 2^28609382 is an apocalyptic number.

28609382 is a deficient number, since it is larger than the sum of its proper divisors (14401618).

28609382 is a wasteful number, since it uses less digits than its factorization.

28609382 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32310.

The product of its (nonzero) digits is 41472, while the sum is 38.

The square root of 28609382 is about 5348.7738781893. The cubic root of 28609382 is about 305.8460144832.

The spelling of 28609382 in words is "twenty-eight million, six hundred nine thousand, three hundred eighty-two".