71157693 has 8 divisors (see below), whose sum is σ = 95505856. Its totient is φ = 47124000.

The previous prime is 71157661. The next prime is 71157701. The reversal of 71157693 is 39675117.

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

It is not a de Polignac number, because 71157693 - 2⁵ = 71157661 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 (71157613) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 78088 + ... + 78993.

It is an arithmetic number, because the mean of its divisors is an integer number (11938232).

Almost surely, 2^71157693 is an apocalyptic number.

It is an amenable number.

71157693 is a deficient number, since it is larger than the sum of its proper divisors (24348163).

71157693 is a wasteful number, since it uses less digits than its factorization.

71157693 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 157235.

The product of its digits is 39690, while the sum is 39.

The square root of 71157693 is about 8435.5019412007. The cubic root of 71157693 is about 414.3881106895.

The spelling of 71157693 in words is "seventy-one million, one hundred fifty-seven thousand, six hundred ninety-three".