2047091 has 2 divisors, whose sum is σ = 2047092. Its totient is φ = 2047090.

The previous prime is 2047063. The next prime is 2047093. The reversal of 2047091 is 1907402.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2047091 is a prime.

It is a Sophie Germain prime.

Together with 2047093, it forms a pair of twin primes.

It is a Chen prime.

It is a zygodrome in base 2.

It is not a weakly prime, because it can be changed into another prime (2047093) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1023545 + 1023546.

It is an arithmetic number, because the mean of its divisors is an integer number (1023546).

2^2047091 is an apocalyptic number.

2047091 is a deficient number, since it is larger than the sum of its proper divisors (1).

2047091 is an equidigital number, since it uses as much as digits as its factorization.

2047091 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 504, while the sum is 23.

The square root of 2047091 is about 1430.7658788215. The cubic root of 2047091 is about 126.9732929974.

The spelling of 2047091 in words is "two million, forty-seven thousand, ninety-one".