28318364 has 6 divisors (see below), whose sum is σ = 49557144. Its totient is φ = 14159180.

The previous prime is 28318361. The next prime is 28318387. The reversal of 28318364 is 46381382.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28318361) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3539792 + ... + 3539799.

It is an arithmetic number, because the mean of its divisors is an integer number (8259524).

Almost surely, 2^28318364 is an apocalyptic number.

It is an amenable number.

28318364 is a deficient number, since it is larger than the sum of its proper divisors (21238780).

28318364 is a wasteful number, since it uses less digits than its factorization.

28318364 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7079595 (or 7079593 counting only the distinct ones).

The product of its digits is 27648, while the sum is 35.

The square root of 28318364 is about 5321.5001644273. The cubic root of 28318364 is about 304.8054443173.

It can be divided in two parts, 28318 and 364, that added together give a palindrome (28682).

The spelling of 28318364 in words is "twenty-eight million, three hundred eighteen thousand, three hundred sixty-four".