28385927 has 8 divisors (see below), whose sum is σ = 28868400. Its totient is φ = 27907264.

The previous prime is 28385911. The next prime is 28385941. The reversal of 28385927 is 72958382.

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

It is a cyclic number.

It is not a de Polignac number, because 28385927 - 2⁴ = 28385911 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 (28385947) 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 in 7 ways as a sum of consecutive naturals, for example, 16724 + ... + 18342.

It is an arithmetic number, because the mean of its divisors is an integer number (3608550).

Almost surely, 2^28385927 is an apocalyptic number.

28385927 is a deficient number, since it is larger than the sum of its proper divisors (482473).

28385927 is a wasteful number, since it uses less digits than its factorization.

28385927 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1905.

The product of its digits is 241920, while the sum is 44.

The square root of 28385927 is about 5327.8444984815. The cubic root of 28385927 is about 305.0476571593.

The spelling of 28385927 in words is "twenty-eight million, three hundred eighty-five thousand, nine hundred twenty-seven".