8505642 has 16 divisors (see below), whose sum is σ = 17598240. Its totient is φ = 2737392.

The previous prime is 8505631. The next prime is 8505643. The reversal of 8505642 is 2465058.

It is not an unprimeable number, because it can be changed into a prime (8505643) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24268 + ... + 24615.

It is an arithmetic number, because the mean of its divisors is an integer number (1099890).

Almost surely, 2^8505642 is an apocalyptic number.

8505642 is an abundant number, since it is smaller than the sum of its proper divisors (9092598).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

8505642 is a wasteful number, since it uses less digits than its factorization.

8505642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48917.

The product of its (nonzero) digits is 9600, while the sum is 30.

The square root of 8505642 is about 2916.4433819294. The cubic root of 8505642 is about 204.1278994189.

The spelling of 8505642 in words is "eight million, five hundred five thousand, six hundred forty-two".