2009747 has 2 divisors, whose sum is σ = 2009748. Its totient is φ = 2009746.

The previous prime is 2009737. The next prime is 2009759. The reversal of 2009747 is 7479002.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2009747 - 2⁴ = 2009731 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (2009737) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1004873 + 1004874.

It is an arithmetic number, because the mean of its divisors is an integer number (1004874).

2^2009747 is an apocalyptic number.

2009747 is a deficient number, since it is larger than the sum of its proper divisors (1).

2009747 is an equidigital number, since it uses as much as digits as its factorization.

2009747 is an evil number, because the sum of its binary digits is even.

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

The square root of 2009747 is about 1417.6554588475. The cubic root of 2009747 is about 126.1964475682.

The spelling of 2009747 in words is "two million, nine thousand, seven hundred forty-seven".