17020040897 has 2 divisors, whose sum is σ = 17020040898. Its totient is φ = 17020040896.

The previous prime is 17020040881. The next prime is 17020040923. The reversal of 17020040897 is 79804002071.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12605900176 + 4414140721 = 112276^2 + 66439^2 .

It is a cyclic number.

It is not a de Polignac number, because 17020040897 - 2⁴ = 17020040881 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 17020040897.

It is not a weakly prime, because it can be changed into another prime (17020040797) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8510020448 + 8510020449.

It is an arithmetic number, because the mean of its divisors is an integer number (8510020449).

Almost surely, 2^17020040897 is an apocalyptic number.

It is an amenable number.

17020040897 is a deficient number, since it is larger than the sum of its proper divisors (1).

17020040897 is an equidigital number, since it uses as much as digits as its factorization.

17020040897 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 28224, while the sum is 38.

The spelling of 17020040897 in words is "seventeen billion, twenty million, forty thousand, eight hundred ninety-seven".