941439643 has 2 divisors, whose sum is σ = 941439644. Its totient is φ = 941439642.

The previous prime is 941439641. The next prime is 941439671. The reversal of 941439643 is 346934149.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 941439643 - 2¹ = 941439641 is a prime.

It is a super-3 number, since 3×941439643³ (a number of 28 digits) contains 333 as substring.

Together with 941439641, 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 941439643.

It is not a weakly prime, because it can be changed into another prime (941439641) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 470719821 + 470719822.

It is an arithmetic number, because the mean of its divisors is an integer number (470719822).

Almost surely, 2^941439643 is an apocalyptic number.

941439643 is a deficient number, since it is larger than the sum of its proper divisors (1).

941439643 is an equidigital number, since it uses as much as digits as its factorization.

941439643 is an evil number, because the sum of its binary digits is even.

The product of its digits is 279936, while the sum is 43.

The square root of 941439643 is about 30682.8884396499. Note that the first 3 decimals coincide. The cubic root of 941439643 is about 980.0859438024.

The spelling of 941439643 in words is "nine hundred forty-one million, four hundred thirty-nine thousand, six hundred forty-three".