1171667717 has 8 divisors (see below), whose sum is σ = 1281238560. Its totient is φ = 1062606160.

The previous prime is 1171667689. The next prime is 1171667719. The reversal of 1171667717 is 7177661711.

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

It is not a de Polignac number, because 1171667717 - 2⁸ = 1171667461 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1171667719) 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, 122498 + ... + 131715.

It is an arithmetic number, because the mean of its divisors is an integer number (160154820).

Almost surely, 2^1171667717 is an apocalyptic number.

It is an amenable number.

1171667717 is a deficient number, since it is larger than the sum of its proper divisors (109570843).

1171667717 is a wasteful number, since it uses less digits than its factorization.

1171667717 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 254643.

The product of its digits is 86436, while the sum is 44.

The square root of 1171667717 is about 34229.6321481841. The cubic root of 1171667717 is about 1054.2286664495.

The spelling of 1171667717 in words is "one billion, one hundred seventy-one million, six hundred sixty-seven thousand, seven hundred seventeen".