17087734397 has 2 divisors, whose sum is σ = 17087734398. Its totient is φ = 17087734396.

The previous prime is 17087734381. The next prime is 17087734453. The reversal of 17087734397 is 79343778071.

It is a happy number.

It is an a-pointer prime, because the next prime (17087734453) can be obtained adding 17087734397 to its sum of digits (56).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9736558276 + 7351176121 = 98674^2 + 85739^2 .

It is a cyclic number.

It is not a de Polignac number, because 17087734397 - 2⁴ = 17087734381 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (17087734597) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8543867198 + 8543867199.

It is an arithmetic number, because the mean of its divisors is an integer number (8543867199).

Almost surely, 2^17087734397 is an apocalyptic number.

It is an amenable number.

17087734397 is a deficient number, since it is larger than the sum of its proper divisors (1).

17087734397 is an equidigital number, since it uses as much as digits as its factorization.

17087734397 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6223392, while the sum is 56.

The spelling of 17087734397 in words is "seventeen billion, eighty-seven million, seven hundred thirty-four thousand, three hundred ninety-seven".