8971943 has 2 divisors, whose sum is σ = 8971944. Its totient is φ = 8971942.

The previous prime is 8971939. The next prime is 8971969. The reversal of 8971943 is 3491798.

It is a happy number.

8971943 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 8971943 - 2² = 8971939 is a prime.

It is a super-2 number, since 2×8971943² = 160991522390498, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 8971943.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8971913) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4485971 + 4485972.

It is an arithmetic number, because the mean of its divisors is an integer number (4485972).

Almost surely, 2^8971943 is an apocalyptic number.

8971943 is a deficient number, since it is larger than the sum of its proper divisors (1).

8971943 is an equidigital number, since it uses as much as digits as its factorization.

8971943 is an evil number, because the sum of its binary digits is even.

The product of its digits is 54432, while the sum is 41.

The square root of 8971943 is about 2995.3201832191. The cubic root of 8971943 is about 207.7920057766.

The spelling of 8971943 in words is "eight million, nine hundred seventy-one thousand, nine hundred forty-three".