71196831 has 12 divisors (see below), whose sum is σ = 103496952. Its totient is φ = 47161296.

The previous prime is 71196823. The next prime is 71196841. The reversal of 71196831 is 13869117.

It is not a de Polignac number, because 71196831 - 2³ = 71196823 is a prime.

It is a super-2 number, since 2×71196831² = 10137977488885122, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71196841) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 23781 + ... + 26606.

It is an arithmetic number, because the mean of its divisors is an integer number (8624746).

Almost surely, 2^71196831 is an apocalyptic number.

71196831 is a deficient number, since it is larger than the sum of its proper divisors (32300121).

71196831 is a wasteful number, since it uses less digits than its factorization.

71196831 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50550 (or 50547 counting only the distinct ones).

The product of its digits is 9072, while the sum is 36.

The square root of 71196831 is about 8437.8214605430. The cubic root of 71196831 is about 414.4640703815.

It can be divided in two parts, 71196 and 831, that added together give a palindrome (72027).

The spelling of 71196831 in words is "seventy-one million, one hundred ninety-six thousand, eight hundred thirty-one".