28105834 has 8 divisors (see below), whose sum is σ = 42183648. Its totient is φ = 14044620.

The previous prime is 28105813. The next prime is 28105837. The reversal of 28105834 is 43850182.

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

It is a junction number, because it is equal to n+sod(n) for n = 28105796 and 28105805.

It is not an unprimeable number, because it can be changed into a prime (28105837) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1779 + ... + 7705.

It is an arithmetic number, because the mean of its divisors is an integer number (5272956).

Almost surely, 2^28105834 is an apocalyptic number.

28105834 is a deficient number, since it is larger than the sum of its proper divisors (14077814).

28105834 is a wasteful number, since it uses less digits than its factorization.

28105834 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8300.

The product of its (nonzero) digits is 7680, while the sum is 31.

The square root of 28105834 is about 5301.4935631386. The cubic root of 28105834 is about 304.0410046836.

The spelling of 28105834 in words is "twenty-eight million, one hundred five thousand, eight hundred thirty-four".