28834839 has 32 divisors (see below), whose sum is σ = 49351680. Its totient is φ = 16444800.

The previous prime is 28834831. The next prime is 28834853. The reversal of 28834839 is 93843882.

It is not a de Polignac number, because 28834839 - 2³ = 28834831 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 28834794 and 28834803.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28834831) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2194 + ... + 7904.

It is an arithmetic number, because the mean of its divisors is an integer number (1542240).

Almost surely, 2^28834839 is an apocalyptic number.

28834839 is a deficient number, since it is larger than the sum of its proper divisors (20516841).

28834839 is a wasteful number, since it uses less digits than its factorization.

28834839 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5748 (or 5742 counting only the distinct ones).

The product of its digits is 331776, while the sum is 45.

The square root of 28834839 is about 5369.8080971297. The cubic root of 28834839 is about 306.6473224776.

The spelling of 28834839 in words is "twenty-eight million, eight hundred thirty-four thousand, eight hundred thirty-nine".