2170943 has 2 divisors, whose sum is σ = 2170944. Its totient is φ = 2170942.

The previous prime is 2170939. The next prime is 2171003. The reversal of 2170943 is 3490712.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2170943 - 2² = 2170939 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2170043) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1085471 + 1085472.

It is an arithmetic number, because the mean of its divisors is an integer number (1085472).

2^2170943 is an apocalyptic number.

2170943 is a deficient number, since it is larger than the sum of its proper divisors (1).

2170943 is an equidigital number, since it uses as much as digits as its factorization.

2170943 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1512, while the sum is 26.

The square root of 2170943 is about 1473.4120265560. The cubic root of 2170943 is about 129.4840098919.

It can be divided in two parts, 2170 and 943, that added together give a palindrome (3113).

The spelling of 2170943 in words is "two million, one hundred seventy thousand, nine hundred forty-three".