28594545 has 16 divisors (see below), whose sum is σ = 52287360. Its totient is φ = 13071744.

The previous prime is 28594541. The next prime is 28594547. The reversal of 28594545 is 54549582.

It is not a de Polignac number, because 28594545 - 2² = 28594541 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 28594497 and 28594506.

It is not an unprimeable number, because it can be changed into a prime (28594541) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 136060 + ... + 136269.

It is an arithmetic number, because the mean of its divisors is an integer number (3267960).

Almost surely, 2^28594545 is an apocalyptic number.

It is an amenable number.

28594545 is a deficient number, since it is larger than the sum of its proper divisors (23692815).

28594545 is a wasteful number, since it uses less digits than its factorization.

28594545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 272344.

The product of its digits is 288000, while the sum is 42.

The square root of 28594545 is about 5347.3867449437. The cubic root of 28594545 is about 305.7931341380.

It can be divided in two parts, 285 and 94545, that added together give a triangular number (94830 = T₄₃₅).

The spelling of 28594545 in words is "twenty-eight million, five hundred ninety-four thousand, five hundred forty-five".