28975834 has 4 divisors (see below), whose sum is σ = 43463754. Its totient is φ = 14487916.

The previous prime is 28975823. The next prime is 28975841. The reversal of 28975834 is 43857982.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 23980609 + 4995225 = 4897^2 + 2235^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7243957 + ... + 7243960.

Almost surely, 2^28975834 is an apocalyptic number.

28975834 is a deficient number, since it is larger than the sum of its proper divisors (14487920).

28975834 is a wasteful number, since it uses less digits than its factorization.

28975834 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14487919.

The product of its digits is 483840, while the sum is 46.

The square root of 28975834 is about 5382.9205827320. The cubic root of 28975834 is about 307.1463190730.

The spelling of 28975834 in words is "twenty-eight million, nine hundred seventy-five thousand, eight hundred thirty-four".