28365933 has 8 divisors (see below), whose sum is σ = 37856896. Its totient is φ = 18892800.

The previous prime is 28365929. The next prime is 28365937. The reversal of 28365933 is 33956382.

It is an interprime number because it is at equal distance from previous prime (28365929) and next prime (28365937).

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

It is not a de Polignac number, because 28365933 - 2² = 28365929 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 28365891 and 28365900.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28365937) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 148 + ... + 7533.

It is an arithmetic number, because the mean of its divisors is an integer number (4732112).

Almost surely, 2^28365933 is an apocalyptic number.

It is an amenable number.

28365933 is a deficient number, since it is larger than the sum of its proper divisors (9490963).

28365933 is a wasteful number, since it uses less digits than its factorization.

28365933 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8915.

The product of its digits is 116640, while the sum is 39.

The square root of 28365933 is about 5325.9677993769. The cubic root of 28365933 is about 304.9760188974.

The spelling of 28365933 in words is "twenty-eight million, three hundred sixty-five thousand, nine hundred thirty-three".