71700709 has 8 divisors (see below), whose sum is σ = 75207168. Its totient is φ = 68276880.

The previous prime is 71700703. The next prime is 71700719. The reversal of 71700709 is 90700717.

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 71700709 - 2⁷ = 71700581 is a prime.

It is a super-2 number, since 2×71700709² = 10281983342205362, 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 (71700703) 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, 18877 + ... + 22354.

It is an arithmetic number, because the mean of its divisors is an integer number (9400896).

Almost surely, 2^71700709 is an apocalyptic number.

It is an amenable number.

71700709 is a deficient number, since it is larger than the sum of its proper divisors (3506459).

71700709 is a wasteful number, since it uses less digits than its factorization.

71700709 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41315.

The product of its (nonzero) digits is 3087, while the sum is 31.

The square root of 71700709 is about 8467.6271174397. The cubic root of 71700709 is about 415.4395285225.

The spelling of 71700709 in words is "seventy-one million, seven hundred thousand, seven hundred nine".