943834523897 has 2 divisors, whose sum is σ = 943834523898. Its totient is φ = 943834523896.

The previous prime is 943834523873. The next prime is 943834523917. The reversal of 943834523897 is 798325438349.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 492272027641 + 451562496256 = 701621^2 + 671984^2 .

It is an emirp because it is prime and its reverse (798325438349) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 943834523897 - 2⁸ = 943834523641 is a prime.

It is not a weakly prime, because it can be changed into another prime (943834523857) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 471917261948 + 471917261949.

It is an arithmetic number, because the mean of its divisors is an integer number (471917261949).

Almost surely, 2^943834523897 is an apocalyptic number.

It is an amenable number.

943834523897 is a deficient number, since it is larger than the sum of its proper divisors (1).

943834523897 is an equidigital number, since it uses as much as digits as its factorization.

943834523897 is an evil number, because the sum of its binary digits is even.

The product of its digits is 156764160, while the sum is 65.

The spelling of 943834523897 in words is "nine hundred forty-three billion, eight hundred thirty-four million, five hundred twenty-three thousand, eight hundred ninety-seven".