28439301 has 8 divisors (see below), whose sum is σ = 41366304. Its totient is φ = 17235920.

The previous prime is 28439291. The next prime is 28439303. The reversal of 28439301 is 10393482.

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 28439301 - 2⁵ = 28439269 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28439303) 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, 430866 + ... + 430931.

It is an arithmetic number, because the mean of its divisors is an integer number (5170788).

Almost surely, 2^28439301 is an apocalyptic number.

It is an amenable number.

28439301 is a deficient number, since it is larger than the sum of its proper divisors (12927003).

28439301 is a wasteful number, since it uses less digits than its factorization.

28439301 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 861811.

The product of its (nonzero) digits is 5184, while the sum is 30.

The square root of 28439301 is about 5332.8511136164. The cubic root of 28439301 is about 305.2387309443.

The spelling of 28439301 in words is "twenty-eight million, four hundred thirty-nine thousand, three hundred one".