28834443 has 12 divisors (see below), whose sum is σ = 45436248. Its totient is φ = 17475360.

The previous prime is 28834441. The next prime is 28834459. The reversal of 28834443 is 34443882.

It is not a de Polignac number, because 28834443 - 2¹ = 28834441 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 28834398 and 28834407.

It is not an unprimeable number, because it can be changed into a prime (28834441) 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 11 ways as a sum of consecutive naturals, for example, 145530 + ... + 145727.

It is an arithmetic number, because the mean of its divisors is an integer number (3786354).

Almost surely, 2^28834443 is an apocalyptic number.

28834443 is a deficient number, since it is larger than the sum of its proper divisors (16601805).

28834443 is a wasteful number, since it uses less digits than its factorization.

28834443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 291274 (or 291271 counting only the distinct ones).

The product of its digits is 73728, while the sum is 36.

The square root of 28834443 is about 5369.7712241771. The cubic root of 28834443 is about 306.6459187024.

The spelling of 28834443 in words is "twenty-eight million, eight hundred thirty-four thousand, four hundred forty-three".