71683031 has 12 divisors (see below), whose sum is σ = 83748960. Its totient is φ = 61175520.

The previous prime is 71683013. The next prime is 71683043. The reversal of 71683031 is 13038617.

It is not a de Polignac number, because 71683031 - 2⁶ = 71682967 is a prime.

It is a super-2 number, since 2×71683031² = 10276913866693922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 71682985 and 71683003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71683081) 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, 8651 + ... + 14771.

It is an arithmetic number, because the mean of its divisors is an integer number (6979080).

Almost surely, 2^71683031 is an apocalyptic number.

71683031 is a deficient number, since it is larger than the sum of its proper divisors (12065929).

71683031 is a wasteful number, since it uses less digits than its factorization.

71683031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6374 (or 6367 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 29.

The square root of 71683031 is about 8466.5831951266. The cubic root of 71683031 is about 415.4053831435.

The spelling of 71683031 in words is "seventy-one million, six hundred eighty-three thousand, thirty-one".