941538643 has 2 divisors, whose sum is σ = 941538644. Its totient is φ = 941538642.

The previous prime is 941538641. The next prime is 941538691. The reversal of 941538643 is 346835149.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 941538643 - 2¹ = 941538641 is a prime.

Together with 941538641, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 941538643.

It is not a weakly prime, because it can be changed into another prime (941538641) 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 as a sum of consecutive naturals, namely, 470769321 + 470769322.

It is an arithmetic number, because the mean of its divisors is an integer number (470769322).

Almost surely, 2^941538643 is an apocalyptic number.

941538643 is a deficient number, since it is larger than the sum of its proper divisors (1).

941538643 is an equidigital number, since it uses as much as digits as its factorization.

941538643 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 311040, while the sum is 43.

The square root of 941538643 is about 30684.5016742981. The cubic root of 941538643 is about 980.1202972554.

The spelling of 941538643 in words is "nine hundred forty-one million, five hundred thirty-eight thousand, six hundred forty-three".