2291747 has 2 divisors, whose sum is σ = 2291748. Its totient is φ = 2291746.

The previous prime is 2291717. The next prime is 2291749. The reversal of 2291747 is 7471922.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2291747 - 2⁶ = 2291683 is a prime.

Together with 2291749, 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 (2291749) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1145873 + 1145874.

It is an arithmetic number, because the mean of its divisors is an integer number (1145874).

2^2291747 is an apocalyptic number.

2291747 is a deficient number, since it is larger than the sum of its proper divisors (1).

2291747 is an equidigital number, since it uses as much as digits as its factorization.

2291747 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7056, while the sum is 32.

The square root of 2291747 is about 1513.8517100430. The cubic root of 2291747 is about 131.8425387485.

The spelling of 2291747 in words is "two million, two hundred ninety-one thousand, seven hundred forty-seven".