28847039 has 8 divisors (see below), whose sum is σ = 31179792. Its totient is φ = 26530560.

The previous prime is 28847029. The next prime is 28847041. The reversal of 28847039 is 93074882.

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 28847039 - 2²⁴ = 12069823 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 28846987 and 28847005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28847029) 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, 242 + ... + 7599.

It is an arithmetic number, because the mean of its divisors is an integer number (3897474).

Almost surely, 2^28847039 is an apocalyptic number.

28847039 is a deficient number, since it is larger than the sum of its proper divisors (2332753).

28847039 is a wasteful number, since it uses less digits than its factorization.

28847039 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8137.

The product of its (nonzero) digits is 96768, while the sum is 41.

The square root of 28847039 is about 5370.9439580022. The cubic root of 28847039 is about 306.6905638015.

The spelling of 28847039 in words is "twenty-eight million, eight hundred forty-seven thousand, thirty-nine".