71347117 has 8 divisors (see below), whose sum is σ = 72387000. Its totient is φ = 70312704.

The previous prime is 71347099. The next prime is 71347141. The reversal of 71347117 is 71174317.

It can be written as a sum of positive squares in 4 ways, for example, as 7650756 + 63696361 = 2766^2 + 7981^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 71347117 - 2¹¹ = 71345069 is a prime.

It is a super-2 number, since 2×71347117² = 10180822208423378, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71347217) 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, 29913 + ... + 32209.

It is an arithmetic number, because the mean of its divisors is an integer number (9048375).

Almost surely, 2^71347117 is an apocalyptic number.

It is an amenable number.

71347117 is a deficient number, since it is larger than the sum of its proper divisors (1039883).

71347117 is a wasteful number, since it uses less digits than its factorization.

71347117 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2735.

The product of its digits is 4116, while the sum is 31.

The square root of 71347117 is about 8446.7222636950. The cubic root of 71347117 is about 414.7554895860.

The spelling of 71347117 in words is "seventy-one million, three hundred forty-seven thousand, one hundred seventeen".