1009320647 has 6 divisors (see below), whose sum is σ = 1011690648. Its totient is φ = 1006953792.

The previous prime is 1009320607. The next prime is 1009320667. The reversal of 1009320647 is 7460239001.

It is not a de Polignac number, because 1009320647 - 2²⁶ = 942211783 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1009320607) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 807479 + ... + 808727.

It is an arithmetic number, because the mean of its divisors is an integer number (168615108).

Almost surely, 2^1009320647 is an apocalyptic number.

1009320647 is a deficient number, since it is larger than the sum of its proper divisors (2370001).

1009320647 is an frugal number, since it uses more digits than its factorization.

1009320647 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3145 (or 1896 counting only the distinct ones).

The product of its (nonzero) digits is 9072, while the sum is 32.

The square root of 1009320647 is about 31769.8071602583. The cubic root of 1009320647 is about 1003.0972792901.

Adding to 1009320647 its reverse (7460239001), we get a palindrome (8469559648).

The spelling of 1009320647 in words is "one billion, nine million, three hundred twenty thousand, six hundred forty-seven".