9404645 has 4 divisors (see below), whose sum is σ = 11285580. Its totient is φ = 7523712.

The previous prime is 9404641. The next prime is 9404693. The reversal of 9404645 is 5464049.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 6466849 + 2937796 = 2543^2 + 1714^2 .

It is a cyclic number.

It is not a de Polignac number, because 9404645 - 2² = 9404641 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9404641) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 940460 + ... + 940469.

It is an arithmetic number, because the mean of its divisors is an integer number (2821395).

Almost surely, 2^9404645 is an apocalyptic number.

It is an amenable number.

9404645 is a deficient number, since it is larger than the sum of its proper divisors (1880935).

9404645 is a wasteful number, since it uses less digits than its factorization.

9404645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1880934.

The product of its (nonzero) digits is 17280, while the sum is 32.

The square root of 9404645 is about 3066.6993657677. The cubic root of 9404645 is about 211.0801863494.

The spelling of 9404645 in words is "nine million, four hundred four thousand, six hundred forty-five".