1009994617 has 2 divisors, whose sum is σ = 1009994618. Its totient is φ = 1009994616.

The previous prime is 1009994611. The next prime is 1009994681. The reversal of 1009994617 is 7164999001.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 891380736 + 118613881 = 29856^2 + 10891^2 .

It is an emirp because it is prime and its reverse (7164999001) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1009994617 - 2¹¹ = 1009992569 is a prime.

It is not a weakly prime, because it can be changed into another prime (1009994611) 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 as a sum of consecutive naturals, namely, 504997308 + 504997309.

It is an arithmetic number, because the mean of its divisors is an integer number (504997309).

Almost surely, 2^1009994617 is an apocalyptic number.

It is an amenable number.

1009994617 is a deficient number, since it is larger than the sum of its proper divisors (1).

1009994617 is an equidigital number, since it uses as much as digits as its factorization.

1009994617 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 122472, while the sum is 46.

The square root of 1009994617 is about 31780.4124737235. The cubic root of 1009994617 is about 1003.3205010690.

The spelling of 1009994617 in words is "one billion, nine million, nine hundred ninety-four thousand, six hundred seventeen".