28606545 has 24 divisors (see below), whose sum is σ = 54093312. Its totient is φ = 13869600.

The previous prime is 28606519. The next prime is 28606553. The reversal of 28606545 is 54560682.

28606545 is a `hidden beast` number, since 2 + 8 + 606 + 5 + 45 = 666.

It is not a de Polignac number, because 28606545 - 2¹⁸ = 28344401 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 28401 + ... + 29390.

It is an arithmetic number, because the mean of its divisors is an integer number (2253888).

Almost surely, 2^28606545 is an apocalyptic number.

It is an amenable number.

28606545 is a deficient number, since it is larger than the sum of its proper divisors (25486767).

28606545 is a wasteful number, since it uses less digits than its factorization.

28606545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57813 (or 57810 counting only the distinct ones).

The product of its (nonzero) digits is 57600, while the sum is 36.

The square root of 28606545 is about 5348.5086706483. The cubic root of 28606545 is about 305.8359045850.

The spelling of 28606545 in words is "twenty-eight million, six hundred six thousand, five hundred forty-five".