7009040209 has 4 divisors (see below), whose sum is σ = 7035690816. Its totient is φ = 6982389604.

The previous prime is 7009040167. The next prime is 7009040249. The reversal of 7009040209 is 9020409007.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 7009040209 - 2¹⁷ = 7008909137 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7009040249) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13324909 + ... + 13325434.

It is an arithmetic number, because the mean of its divisors is an integer number (1758922704).

Almost surely, 2^7009040209 is an apocalyptic number.

It is an amenable number.

7009040209 is a deficient number, since it is larger than the sum of its proper divisors (26650607).

7009040209 is a wasteful number, since it uses less digits than its factorization.

7009040209 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26650606.

The product of its (nonzero) digits is 4536, while the sum is 31.

The square root of 7009040209 is about 83720.0108038693. The cubic root of 7009040209 is about 1913.7543188917.

The spelling of 7009040209 in words is "seven billion, nine million, forty thousand, two hundred nine".