3116805 has 16 divisors (see below), whose sum is σ = 5094144. Its totient is φ = 1626560.

The previous prime is 3116783. The next prime is 3116807. The reversal of 3116805 is 5086113.

It is not a de Polignac number, because 3116805 - 2⁸ = 3116549 is a prime.

3116805 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3116807) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1506 + ... + 2915.

It is an arithmetic number, because the mean of its divisors is an integer number (318384).

Almost surely, 2^3116805 is an apocalyptic number.

It is an amenable number.

3116805 is a deficient number, since it is larger than the sum of its proper divisors (1977339).

3116805 is a wasteful number, since it uses less digits than its factorization.

3116805 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4476.

The product of its (nonzero) digits is 720, while the sum is 24.

The square root of 3116805 is about 1765.4475353292. The cubic root of 3116805 is about 146.0729759656.

It can be divided in two parts, 31 and 16805, that added together give a triangular number (16836 = T₁₈₃).

The spelling of 3116805 in words is "three million, one hundred sixteen thousand, eight hundred five".