1671347 has 2 divisors, whose sum is σ = 1671348. Its totient is φ = 1671346.

The previous prime is 1671343. The next prime is 1671349. The reversal of 1671347 is 7431761.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1671347 - 2² = 1671343 is a prime.

Together with 1671349, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (1671343) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 835673 + 835674.

It is an arithmetic number, because the mean of its divisors is an integer number (835674).

2^1671347 is an apocalyptic number.

1671347 is a deficient number, since it is larger than the sum of its proper divisors (1).

1671347 is an equidigital number, since it uses as much as digits as its factorization.

1671347 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3528, while the sum is 29.

The square root of 1671347 is about 1292.8058632293. The cubic root of 1671347 is about 118.6739893993.

The spelling of 1671347 in words is "one million, six hundred seventy-one thousand, three hundred forty-seven".