920943305 has 8 divisors (see below), whose sum is σ = 1105296192. Its totient is φ = 736645168.

The previous prime is 920943293. The next prime is 920943307. The reversal of 920943305 is 503349029.

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 920943305 - 2¹⁸ = 920681161 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (920943307) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 51914 + ... + 67356.

It is an arithmetic number, because the mean of its divisors is an integer number (138162024).

Almost surely, 2^920943305 is an apocalyptic number.

It is an amenable number.

920943305 is a deficient number, since it is larger than the sum of its proper divisors (184352887).

920943305 is a wasteful number, since it uses less digits than its factorization.

920943305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27375.

The product of its (nonzero) digits is 29160, while the sum is 35.

The square root of 920943305 is about 30347.0477147284. The cubic root of 920943305 is about 972.9211213342.

The spelling of 920943305 in words is "nine hundred twenty million, nine hundred forty-three thousand, three hundred five".