1071717389 has 2 divisors, whose sum is σ = 1071717390. Its totient is φ = 1071717388.

The previous prime is 1071717371. The next prime is 1071717391. The reversal of 1071717389 is 9837171701.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1034908900 + 36808489 = 32170^2 + 6067^2 .

It is a cyclic number.

It is not a de Polignac number, because 1071717389 - 2¹⁶ = 1071651853 is a prime.

It is a super-2 number, since 2×1071717389² = 2297156323769954642, which contains 22 as substring.

It is a Sophie Germain prime.

Together with 1071717391, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1071717289) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 535858694 + 535858695.

It is an arithmetic number, because the mean of its divisors is an integer number (535858695).

Almost surely, 2^1071717389 is an apocalyptic number.

It is an amenable number.

1071717389 is a deficient number, since it is larger than the sum of its proper divisors (1).

1071717389 is an equidigital number, since it uses as much as digits as its factorization.

1071717389 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 74088, while the sum is 44.

The square root of 1071717389 is about 32737.0949994040. The cubic root of 1071717389 is about 1023.3560445704.

The spelling of 1071717389 in words is "one billion, seventy-one million, seven hundred seventeen thousand, three hundred eighty-nine".