8204545 has 8 divisors (see below), whose sum is σ = 9970560. Its totient is φ = 6480240.

The previous prime is 8204531. The next prime is 8204569. The reversal of 8204545 is 5454028.

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

It is not a de Polignac number, because 8204545 - 2⁵ = 8204513 is a prime.

It is an Ulam number.

8204545 is a modest number, since divided by 4545 gives 820 as remainder.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9991 + ... + 10780.

It is an arithmetic number, because the mean of its divisors is an integer number (1246320).

Almost surely, 2^8204545 is an apocalyptic number.

It is an amenable number.

8204545 is a deficient number, since it is larger than the sum of its proper divisors (1766015).

8204545 is a wasteful number, since it uses less digits than its factorization.

8204545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20855.

The product of its (nonzero) digits is 6400, while the sum is 28.

The square root of 8204545 is about 2864.3576941437. The cubic root of 8204545 is about 201.6902172559.

The spelling of 8204545 in words is "eight million, two hundred four thousand, five hundred forty-five".