3118891 has 8 divisors (see below), whose sum is σ = 3220560. Its totient is φ = 3018912.

The previous prime is 3118889. The next prime is 3118897. The reversal of 3118891 is 1988113.

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 3118891 - 2¹ = 3118889 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3118897) 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, 4045 + ... + 4753.

It is an arithmetic number, because the mean of its divisors is an integer number (402570).

Almost surely, 2^3118891 is an apocalyptic number.

3118891 is a deficient number, since it is larger than the sum of its proper divisors (101669).

3118891 is an equidigital number, since it uses as much as digits as its factorization.

3118891 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 845.

The product of its digits is 1728, while the sum is 31.

The square root of 3118891 is about 1766.0382215569. The cubic root of 3118891 is about 146.1055563671.

The spelling of 3118891 in words is "three million, one hundred eighteen thousand, eight hundred ninety-one".