8650945 has 8 divisors (see below), whose sum is σ = 10488744. Its totient is φ = 6849024.

The previous prime is 8650927. The next prime is 8650979. The reversal of 8650945 is 5490568.

It can be written as a sum of positive squares in 4 ways, for example, as 1937664 + 6713281 = 1392^2 + 2591^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 8650945 - 2²¹ = 6553793 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8434 + ... + 9403.

It is an arithmetic number, because the mean of its divisors is an integer number (1311093).

Almost surely, 2^8650945 is an apocalyptic number.

It is an amenable number.

8650945 is a deficient number, since it is larger than the sum of its proper divisors (1837799).

8650945 is a wasteful number, since it uses less digits than its factorization.

8650945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17939.

The product of its (nonzero) digits is 43200, while the sum is 37.

The square root of 8650945 is about 2941.2488844027. The cubic root of 8650945 is about 205.2837237373.

The spelling of 8650945 in words is "eight million, six hundred fifty thousand, nine hundred forty-five".