170916943 has 2 divisors, whose sum is σ = 170916944. Its totient is φ = 170916942.

The previous prime is 170916877. The next prime is 170916971. The reversal of 170916943 is 349619071.

It is a strong prime.

It is an emirp because it is prime and its reverse (349619071) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-170916943 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 170916896 and 170916905.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (170916983) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 85458471 + 85458472.

It is an arithmetic number, because the mean of its divisors is an integer number (85458472).

Almost surely, 2^170916943 is an apocalyptic number.

170916943 is a deficient number, since it is larger than the sum of its proper divisors (1).

170916943 is an equidigital number, since it uses as much as digits as its factorization.

170916943 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 40824, while the sum is 40.

The square root of 170916943 is about 13073.5206811325. The cubic root of 170916943 is about 554.9600306687.

The spelling of 170916943 in words is "one hundred seventy million, nine hundred sixteen thousand, nine hundred forty-three".