2091347 has 2 divisors, whose sum is σ = 2091348. Its totient is φ = 2091346.

The previous prime is 2091343. The next prime is 2091361. The reversal of 2091347 is 7431902.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2091347 - 2² = 2091343 is a prime.

It is not a weakly prime, because it can be changed into another prime (2091343) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1045673 + 1045674.

It is an arithmetic number, because the mean of its divisors is an integer number (1045674).

2^2091347 is an apocalyptic number.

2091347 is a deficient number, since it is larger than the sum of its proper divisors (1).

2091347 is an equidigital number, since it uses as much as digits as its factorization.

2091347 is an evil number, because the sum of its binary digits is even.

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

The square root of 2091347 is about 1446.1490241327. The cubic root of 2091347 is about 127.8817878335.

The spelling of 2091347 in words is "two million, ninety-one thousand, three hundred forty-seven".