8280545 has 16 divisors (see below), whose sum is σ = 12230400. Its totient is φ = 5241024.

The previous prime is 8280521. The next prime is 8280557. The reversal of 8280545 is 5450828.

It is a cyclic number.

It is not a de Polignac number, because 8280545 - 2⁸ = 8280289 is a prime.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8645 + ... + 9554.

It is an arithmetic number, because the mean of its divisors is an integer number (764400).

Almost surely, 2^8280545 is an apocalyptic number.

It is an amenable number.

8280545 is a deficient number, since it is larger than the sum of its proper divisors (3949855).

8280545 is a wasteful number, since it uses less digits than its factorization.

8280545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18224.

The product of its (nonzero) digits is 12800, while the sum is 32.

The square root of 8280545 is about 2877.5936127257. The cubic root of 8280545 is about 202.3110669846.

The spelling of 8280545 in words is "eight million, two hundred eighty thousand, five hundred forty-five".