2171347 has 2 divisors, whose sum is σ = 2171348. Its totient is φ = 2171346.

The previous prime is 2171341. The next prime is 2171383. The reversal of 2171347 is 7431712.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2171347 - 2⁷ = 2171219 is a prime.

It is not a weakly prime, because it can be changed into another prime (2171341) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1085673 + 1085674.

It is an arithmetic number, because the mean of its divisors is an integer number (1085674).

2^2171347 is an apocalyptic number.

2171347 is a deficient number, since it is larger than the sum of its proper divisors (1).

2171347 is an equidigital number, since it uses as much as digits as its factorization.

2171347 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1176, while the sum is 25.

The square root of 2171347 is about 1473.5491169282. The cubic root of 2171347 is about 129.4920414701.

The spelling of 2171347 in words is "two million, one hundred seventy-one thousand, three hundred forty-seven".