9894264517 has 2 divisors, whose sum is σ = 9894264518. Its totient is φ = 9894264516.

The previous prime is 9894264511. The next prime is 9894264529. The reversal of 9894264517 is 7154624989.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8259356161 + 1634908356 = 90881^2 + 40434^2 .

It is a cyclic number.

It is not a de Polignac number, because 9894264517 - 2³ = 9894264509 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9894264511) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4947132258 + 4947132259.

It is an arithmetic number, because the mean of its divisors is an integer number (4947132259).

Almost surely, 2^9894264517 is an apocalyptic number.

It is an amenable number.

9894264517 is a deficient number, since it is larger than the sum of its proper divisors (1).

9894264517 is an equidigital number, since it uses as much as digits as its factorization.

9894264517 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4354560, while the sum is 55.

The square root of 9894264517 is about 99469.9176485032. The cubic root of 9894264517 is about 2146.8144291053.

The spelling of 9894264517 in words is "nine billion, eight hundred ninety-four million, two hundred sixty-four thousand, five hundred seventeen".