71731693 has 8 divisors (see below), whose sum is σ = 78825600. Its totient is φ = 64733280.

The previous prime is 71731679. The next prime is 71731717. The reversal of 71731693 is 39613717.

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 71731693 - 2⁵ = 71731661 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 (71731193) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22293 + ... + 25306.

It is an arithmetic number, because the mean of its divisors is an integer number (9853200).

Almost surely, 2^71731693 is an apocalyptic number.

It is an amenable number.

71731693 is a deficient number, since it is larger than the sum of its proper divisors (7093907).

71731693 is a wasteful number, since it uses less digits than its factorization.

71731693 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47747.

The product of its digits is 23814, while the sum is 37.

The square root of 71731693 is about 8469.4564760674. The cubic root of 71731693 is about 415.4993611465.

It can be divided in two parts, 717316 and 93, that added together give a square (717409 = 847²).

The spelling of 71731693 in words is "seventy-one million, seven hundred thirty-one thousand, six hundred ninety-three".