1711171887 has 8 divisors (see below), whose sum is σ = 2282566704. Its totient is φ = 1140279168.

The previous prime is 1711171841. The next prime is 1711171919. The reversal of 1711171887 is 7881711171.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1711171887 - 2⁶ = 1711171823 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1711171487) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 117498 + ... + 131255.

It is an arithmetic number, because the mean of its divisors is an integer number (285320838).

Almost surely, 2^1711171887 is an apocalyptic number.

1711171887 is a deficient number, since it is larger than the sum of its proper divisors (571394817).

1711171887 is a wasteful number, since it uses less digits than its factorization.

1711171887 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 251049.

The product of its digits is 21952, while the sum is 42.

The square root of 1711171887 is about 41366.3134325504. The cubic root of 1711171887 is about 1196.0918895164.

The spelling of 1711171887 in words is "one billion, seven hundred eleven million, one hundred seventy-one thousand, eight hundred eighty-seven".