8961943 has 2 divisors, whose sum is σ = 8961944. Its totient is φ = 8961942.

The previous prime is 8961893. The next prime is 8961959. The reversal of 8961943 is 3491698.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-8961943 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 8961896 and 8961905.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8961983) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4480971 + 4480972.

It is an arithmetic number, because the mean of its divisors is an integer number (4480972).

Almost surely, 2^8961943 is an apocalyptic number.

8961943 is a deficient number, since it is larger than the sum of its proper divisors (1).

8961943 is an equidigital number, since it uses as much as digits as its factorization.

8961943 is an evil number, because the sum of its binary digits is even.

The product of its digits is 46656, while the sum is 40.

The square root of 8961943 is about 2993.6504471965. The cubic root of 8961943 is about 207.7147764057.

The spelling of 8961943 in words is "eight million, nine hundred sixty-one thousand, nine hundred forty-three".