28964585 has 24 divisors (see below), whose sum is σ = 38480904. Its totient is φ = 20805120.

The previous prime is 28964563. The next prime is 28964587. The reversal of 28964585 is 58546982.

It can be written as a sum of positive squares in 4 ways, for example, as 1893376 + 27071209 = 1376^2 + 5203^2 .

It is not a de Polignac number, because 28964585 - 2⁸ = 28964329 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28964587) 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 23 ways as a sum of consecutive naturals, for example, 120065 + ... + 120305.

It is an arithmetic number, because the mean of its divisors is an integer number (1603371).

Almost surely, 2^28964585 is an apocalyptic number.

It is an amenable number.

28964585 is a deficient number, since it is larger than the sum of its proper divisors (9516319).

28964585 is a wasteful number, since it uses less digits than its factorization.

28964585 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 345 (or 302 counting only the distinct ones).

The product of its digits is 691200, while the sum is 47.

The square root of 28964585 is about 5381.8756024271. The cubic root of 28964585 is about 307.1065671409.

The spelling of 28964585 in words is "twenty-eight million, nine hundred sixty-four thousand, five hundred eighty-five".