28308327 has 8 divisors (see below), whose sum is σ = 38665200. Its totient is φ = 18411840.

The previous prime is 28308311. The next prime is 28308341. The reversal of 28308327 is 72380382.

It is a happy number.

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

It is not a de Polignac number, because 28308327 - 2⁴ = 28308311 is a prime.

It is a super-2 number, since 2×28308327² = 1602722755077858, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28308127) 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, 114952 + ... + 115197.

It is an arithmetic number, because the mean of its divisors is an integer number (4833150).

Almost surely, 2^28308327 is an apocalyptic number.

28308327 is a deficient number, since it is larger than the sum of its proper divisors (10356873).

28308327 is a wasteful number, since it uses less digits than its factorization.

28308327 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 230193.

The product of its (nonzero) digits is 16128, while the sum is 33.

The square root of 28308327 is about 5320.5570197114. The cubic root of 28308327 is about 304.7694288922.

The spelling of 28308327 in words is "twenty-eight million, three hundred eight thousand, three hundred twenty-seven".