8664131 has 6 divisors (see below), whose sum is σ = 10078740. Its totient is φ = 7426356.

The previous prime is 8664109. The next prime is 8664157. The reversal of 8664131 is 1314668.

It is a de Polignac number, because none of the positive numbers 2^k-8664131 is a prime.

It is a super-2 number, since 2×8664131² = 150134331970322, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 8664094 and 8664103.

It is not an unprimeable number, because it can be changed into a prime (8664181) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 88361 + ... + 88458.

It is an arithmetic number, because the mean of its divisors is an integer number (1679790).

Almost surely, 2^8664131 is an apocalyptic number.

8664131 is a deficient number, since it is larger than the sum of its proper divisors (1414609).

8664131 is a wasteful number, since it uses less digits than its factorization.

8664131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 176833 (or 176826 counting only the distinct ones).

The product of its digits is 3456, while the sum is 29.

The square root of 8664131 is about 2943.4895957010. The cubic root of 8664131 is about 205.3879704236.

Adding to 8664131 its reverse (1314668), we get a palindrome (9978799).

The spelling of 8664131 in words is "eight million, six hundred sixty-four thousand, one hundred thirty-one".