28945834 has 8 divisors (see below), whose sum is σ = 43513920. Its totient is φ = 14441196.

The previous prime is 28945831. The next prime is 28945853. The reversal of 28945834 is 43854982.

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

It is a super-2 number, since 2×28945834² = 1675722611911112, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (28945831) 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, 14704 + ... + 16555.

It is an arithmetic number, because the mean of its divisors is an integer number (5439240).

Almost surely, 2^28945834 is an apocalyptic number.

28945834 is a deficient number, since it is larger than the sum of its proper divisors (14568086).

28945834 is a wasteful number, since it uses less digits than its factorization.

28945834 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31724.

The product of its digits is 276480, while the sum is 43.

The square root of 28945834 is about 5380.1332697248. The cubic root of 28945834 is about 307.0402816140.

The spelling of 28945834 in words is "twenty-eight million, nine hundred forty-five thousand, eight hundred thirty-four".