71386693 has 8 divisors (see below), whose sum is σ = 82000512. Its totient is φ = 60876816.

The previous prime is 71386681. The next prime is 71386703. The reversal of 71386693 is 39668317.

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

It is a de Polignac number, because none of the positive numbers 2^k-71386693 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 (71386663) 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, 24505 + ... + 27262.

It is an arithmetic number, because the mean of its divisors is an integer number (10250064).

Almost surely, 2^71386693 is an apocalyptic number.

It is an amenable number.

71386693 is a deficient number, since it is larger than the sum of its proper divisors (10613819).

71386693 is a wasteful number, since it uses less digits than its factorization.

71386693 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51971.

The product of its digits is 163296, while the sum is 43.

The square root of 71386693 is about 8449.0646227852. The cubic root of 71386693 is about 414.8321632246.

It can be divided in two parts, 7138 and 6693, that added together give a palindrome (13831).

The spelling of 71386693 in words is "seventy-one million, three hundred eighty-six thousand, six hundred ninety-three".