28326367 has 4 divisors (see below), whose sum is σ = 29017296. Its totient is φ = 27635440.

The previous prime is 28326329. The next prime is 28326371. The reversal of 28326367 is 76362382.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 76362382 = 2 ⋅38181191.

It is a cyclic number.

It is not a de Polignac number, because 28326367 - 2¹⁵ = 28293599 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 (28326377) 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, 345403 + ... + 345484.

It is an arithmetic number, because the mean of its divisors is an integer number (7254324).

Almost surely, 2^28326367 is an apocalyptic number.

28326367 is a deficient number, since it is larger than the sum of its proper divisors (690929).

28326367 is an equidigital number, since it uses as much as digits as its factorization.

28326367 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 690928.

The product of its digits is 72576, while the sum is 37.

The square root of 28326367 is about 5322.2520609231. The cubic root of 28326367 is about 304.8341551121.

The spelling of 28326367 in words is "twenty-eight million, three hundred twenty-six thousand, three hundred sixty-seven".