9116861 has 8 divisors (see below), whose sum is σ = 9852024. Its totient is φ = 8386560.

The previous prime is 9116851. The next prime is 9116867. The reversal of 9116861 is 1686119.

It can be written as a sum of positive squares in 4 ways, for example, as 2500 + 9114361 = 50^2 + 3019^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-9116861 is a prime.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9116867) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3341 + ... + 5421.

It is an arithmetic number, because the mean of its divisors is an integer number (1231503).

Almost surely, 2^9116861 is an apocalyptic number.

It is an amenable number.

9116861 is a deficient number, since it is larger than the sum of its proper divisors (735163).

9116861 is a wasteful number, since it uses less digits than its factorization.

9116861 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2431.

The product of its digits is 2592, while the sum is 32.

The square root of 9116861 is about 3019.4140159971. The cubic root of 9116861 is about 208.9048123120.

It can be divided in two parts, 91 and 16861, that multiplied together give a palindrome (1534351).

The spelling of 9116861 in words is "nine million, one hundred sixteen thousand, eight hundred sixty-one".