28582345 has 16 divisors (see below), whose sum is σ = 38216448. Its totient is φ = 20343040.

The previous prime is 28582339. The next prime is 28582381. The reversal of 28582345 is 54328582.

It is not a de Polignac number, because 28582345 - 2¹¹ = 28580297 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2944 + ... + 8113.

It is an arithmetic number, because the mean of its divisors is an integer number (2388528).

Almost surely, 2^28582345 is an apocalyptic number.

It is an amenable number.

28582345 is a deficient number, since it is larger than the sum of its proper divisors (9634103).

28582345 is a wasteful number, since it uses less digits than its factorization.

28582345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11120.

The product of its digits is 76800, while the sum is 37.

The square root of 28582345 is about 5346.2458791193. The cubic root of 28582345 is about 305.7496385816.

The spelling of 28582345 in words is "twenty-eight million, five hundred eighty-two thousand, three hundred forty-five".