8131716 has 36 divisors (see below), whose sum is σ = 21266700. Its totient is φ = 2616768.

The previous prime is 8131699. The next prime is 8131733. The reversal of 8131716 is 6171318.

It is an interprime number because it is at equal distance from previous prime (8131699) and next prime (8131733).

It can be written as a sum of positive squares in 2 ways, for example, as 4536900 + 3594816 = 2130^2 + 1896^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×8131716² = 132249610209312, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 8131716.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2851 + ... + 4938.

Almost surely, 2^8131716 is an apocalyptic number.

It is an amenable number.

8131716 is an abundant number, since it is smaller than the sum of its proper divisors (13134984).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

8131716 is a wasteful number, since it uses less digits than its factorization.

8131716 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7828 (or 7823 counting only the distinct ones).

The product of its digits is 1008, while the sum is 27.

The square root of 8131716 is about 2851.6163837375. The cubic root of 8131716 is about 201.0916638422.

The spelling of 8131716 in words is "eight million, one hundred thirty-one thousand, seven hundred sixteen".