28575345 has 8 divisors (see below), whose sum is σ = 45720576. Its totient is φ = 15240176.

The previous prime is 28575343. The next prime is 28575377. The reversal of 28575345 is 54357582.

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

It is a cyclic number.

It is not a de Polignac number, because 28575345 - 2¹ = 28575343 is a prime.

It is not an unprimeable number, because it can be changed into a prime (28575341) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 952497 + ... + 952526.

It is an arithmetic number, because the mean of its divisors is an integer number (5715072).

Almost surely, 2^28575345 is an apocalyptic number.

It is an amenable number.

28575345 is a deficient number, since it is larger than the sum of its proper divisors (17145231).

28575345 is a wasteful number, since it uses less digits than its factorization.

28575345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1905031.

The product of its digits is 168000, while the sum is 39.

The square root of 28575345 is about 5345.5911740424. The cubic root of 28575345 is about 305.7246765265.

It can be divided in two parts, 28575 and 345, that added together give a triangular number (28920 = T₂₄₀).

The spelling of 28575345 in words is "twenty-eight million, five hundred seventy-five thousand, three hundred forty-five".