28964774 has 16 divisors (see below), whose sum is σ = 45626112. Its totient is φ = 13764168.

The previous prime is 28964743. The next prime is 28964779. The reversal of 28964774 is 47746982.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28964779) 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 7 ways as a sum of consecutive naturals, for example, 5567 + ... + 9429.

It is an arithmetic number, because the mean of its divisors is an integer number (2851632).

Almost surely, 2^28964774 is an apocalyptic number.

28964774 is a deficient number, since it is larger than the sum of its proper divisors (16661338).

28964774 is a wasteful number, since it uses less digits than its factorization.

28964774 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4051.

The product of its digits is 677376, while the sum is 47.

The square root of 28964774 is about 5381.8931613327. The cubic root of 28964774 is about 307.1072351178.

The spelling of 28964774 in words is "twenty-eight million, nine hundred sixty-four thousand, seven hundred seventy-four".