8181713 has 4 divisors (see below), whose sum is σ = 8355840. Its totient is φ = 8007588.

The previous prime is 8181697. The next prime is 8181727. The reversal of 8181713 is 3171818.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 8181713 - 2⁴ = 8181697 is a prime.

It is a super-2 number, since 2×8181713² = 133880855228738, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8180713) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 86993 + ... + 87086.

It is an arithmetic number, because the mean of its divisors is an integer number (2088960).

Almost surely, 2^8181713 is an apocalyptic number.

It is an amenable number.

8181713 is a deficient number, since it is larger than the sum of its proper divisors (174127).

8181713 is a wasteful number, since it uses less digits than its factorization.

8181713 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 174126.

The product of its digits is 1344, while the sum is 29.

The square root of 8181713 is about 2860.3693817408. The cubic root of 8181713 is about 201.5029523793.

The spelling of 8181713 in words is "eight million, one hundred eighty-one thousand, seven hundred thirteen".