28790000839 has 8 divisors (see below), whose sum is σ = 29437612272. Its totient is φ = 28146256320.

The previous prime is 28790000801. The next prime is 28790000843. The reversal of 28790000839 is 93800009782.

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

It is not a de Polignac number, because 28790000839 - 2¹⁵ = 28789968071 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 (28790000849) 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, 951669 + ... + 981454.

It is an arithmetic number, because the mean of its divisors is an integer number (3679701534).

Almost surely, 2^28790000839 is an apocalyptic number.

28790000839 is a deficient number, since it is larger than the sum of its proper divisors (647611433).

28790000839 is a wasteful number, since it uses less digits than its factorization.

28790000839 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1933457.

The product of its (nonzero) digits is 217728, while the sum is 46.

The spelling of 28790000839 in words is "twenty-eight billion, seven hundred ninety million, eight hundred thirty-nine", and thus it is an aban number.