28321364 has 12 divisors (see below), whose sum is σ = 49725984. Its totient is φ = 14113944.

The previous prime is 28321339. The next prime is 28321367. The reversal of 28321364 is 46312382.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28321367) 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, 10304 + ... + 12759.

It is an arithmetic number, because the mean of its divisors is an integer number (4143832).

Almost surely, 2^28321364 is an apocalyptic number.

It is an amenable number.

28321364 is a deficient number, since it is larger than the sum of its proper divisors (21404620).

28321364 is a wasteful number, since it uses less digits than its factorization.

28321364 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23374 (or 23372 counting only the distinct ones).

The product of its digits is 6912, while the sum is 29.

The square root of 28321364 is about 5321.7820323647. The cubic root of 28321364 is about 304.8162074632.

The spelling of 28321364 in words is "twenty-eight million, three hundred twenty-one thousand, three hundred sixty-four".