28585874 has 8 divisors (see below), whose sum is σ = 45401148. Its totient is φ = 13452160.

The previous prime is 28585871. The next prime is 28585901. The reversal of 28585874 is 47858582.

It can be written as a sum of positive squares in 2 ways, for example, as 28015849 + 570025 = 5293^2 + 755^2 .

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

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (28585871) by changing a digit.

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 in 3 ways as a sum of consecutive naturals, for example, 420347 + ... + 420414.

Almost surely, 2^28585874 is an apocalyptic number.

28585874 is a deficient number, since it is larger than the sum of its proper divisors (16815274).

28585874 is a wasteful number, since it uses less digits than its factorization.

28585874 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 840780.

The product of its digits is 716800, while the sum is 47.

The square root of 28585874 is about 5346.5759136105. The cubic root of 28585874 is about 305.7622214782.

The spelling of 28585874 in words is "twenty-eight million, five hundred eighty-five thousand, eight hundred seventy-four".