28346329 has 16 divisors (see below), whose sum is σ = 32000256. Its totient is φ = 24883200.

The previous prime is 28346323. The next prime is 28346359. The reversal of 28346329 is 92364382.

It is a cyclic number.

It is not a de Polignac number, because 28346329 - 2¹³ = 28338137 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (37).

It is a Duffinian number.

Its product of digits (62208) is a multiple of the sum of its prime divisors (576).

It is not an unprimeable number, because it can be changed into a prime (28346323) 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 15 ways as a sum of consecutive naturals, for example, 104464 + ... + 104734.

It is an arithmetic number, because the mean of its divisors is an integer number (2000016).

Almost surely, 2^28346329 is an apocalyptic number.

It is an amenable number.

28346329 is a deficient number, since it is larger than the sum of its proper divisors (3653927).

28346329 is a wasteful number, since it uses less digits than its factorization.

28346329 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 576.

The product of its digits is 62208, while the sum is 37.

The square root of 28346329 is about 5324.1270645994. The cubic root of 28346329 is about 304.9057453087.

The spelling of 28346329 in words is "twenty-eight million, three hundred forty-six thousand, three hundred twenty-nine".