28327013 has 8 divisors (see below), whose sum is σ = 33279456. Its totient is φ = 23770800.

The previous prime is 28327003. The next prime is 28327027. The reversal of 28327013 is 31072382.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-28327013 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 (28327003) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 98903 + ... + 99188.

It is an arithmetic number, because the mean of its divisors is an integer number (4159932).

Almost surely, 2^28327013 is an apocalyptic number.

It is an amenable number.

28327013 is a deficient number, since it is larger than the sum of its proper divisors (4952443).

28327013 is a wasteful number, since it uses less digits than its factorization.

28327013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 198115.

The product of its (nonzero) digits is 2016, while the sum is 26.

The square root of 28327013 is about 5322.3127491721. The cubic root of 28327013 is about 304.8364724039.

Adding to 28327013 its reverse (31072382), we get a palindrome (59399395).

The spelling of 28327013 in words is "twenty-eight million, three hundred twenty-seven thousand, thirteen".