943400963 has 2 divisors, whose sum is σ = 943400964. Its totient is φ = 943400962.

The previous prime is 943400947. The next prime is 943400971. The reversal of 943400963 is 369004349.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 943400963 - 2⁴ = 943400947 is a prime.

It is not a weakly prime, because it can be changed into another prime (943400993) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 471700481 + 471700482.

It is an arithmetic number, because the mean of its divisors is an integer number (471700482).

Almost surely, 2^943400963 is an apocalyptic number.

943400963 is a deficient number, since it is larger than the sum of its proper divisors (1).

943400963 is an equidigital number, since it uses as much as digits as its factorization.

943400963 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 69984, while the sum is 38.

The square root of 943400963 is about 30714.8329476167. The cubic root of 943400963 is about 980.7660825753.

The spelling of 943400963 in words is "nine hundred forty-three million, four hundred thousand, nine hundred sixty-three".