3091913 has 16 divisors (see below), whose sum is σ = 3583872. Its totient is φ = 2662000.

The previous prime is 3091903. The next prime is 3091919. The reversal of 3091913 is 3191903.

It is not a de Polignac number, because 3091913 - 2⁴ = 3091897 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3091919) 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 15 ways as a sum of consecutive naturals, for example, 30563 + ... + 30663.

It is an arithmetic number, because the mean of its divisors is an integer number (223992).

Almost surely, 2^3091913 is an apocalyptic number.

It is an amenable number.

3091913 is a deficient number, since it is larger than the sum of its proper divisors (491959).

3091913 is a wasteful number, since it uses less digits than its factorization.

3091913 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 157 (or 135 counting only the distinct ones).

The product of its (nonzero) digits is 729, while the sum is 26.

The square root of 3091913 is about 1758.3836327719. The cubic root of 3091913 is about 145.6830712051.

It can be divided in two parts, 3091 and 913, that added together give a palindrome (4004).

The spelling of 3091913 in words is "three million, ninety-one thousand, nine hundred thirteen".