1004207917 has 2 divisors, whose sum is σ = 1004207918. Its totient is φ = 1004207916.

The previous prime is 1004207881. The next prime is 1004207921. The reversal of 1004207917 is 7197024001.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 877285161 + 126922756 = 29619^2 + 11266^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1004207917 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1004217917) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 502103958 + 502103959.

It is an arithmetic number, because the mean of its divisors is an integer number (502103959).

Almost surely, 2^1004207917 is an apocalyptic number.

It is an amenable number.

1004207917 is a deficient number, since it is larger than the sum of its proper divisors (1).

1004207917 is an equidigital number, since it uses as much as digits as its factorization.

1004207917 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 31.

The square root of 1004207917 is about 31689.2397668357. The cubic root of 1004207917 is about 1001.4006761902.

The spelling of 1004207917 in words is "one billion, four million, two hundred seven thousand, nine hundred seventeen".