3116861 has 8 divisors (see below), whose sum is σ = 3483648. Its totient is φ = 2764000.

The previous prime is 3116857. The next prime is 3116863. The reversal of 3116861 is 1686113.

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

It is a cyclic number.

It is not a de Polignac number, because 3116861 - 2² = 3116857 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 3116861.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3116863) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3005 + ... + 3906.

It is an arithmetic number, because the mean of its divisors is an integer number (435456).

Almost surely, 2^3116861 is an apocalyptic number.

It is an amenable number.

3116861 is a deficient number, since it is larger than the sum of its proper divisors (366787).

3116861 is a wasteful number, since it uses less digits than its factorization.

3116861 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6963.

The product of its digits is 864, while the sum is 26.

The square root of 3116861 is about 1765.4633952592. The cubic root of 3116861 is about 146.0738507971.

The spelling of 3116861 in words is "three million, one hundred sixteen thousand, eight hundred sixty-one".