3001391 has 4 divisors (see below), whose sum is σ = 3025152. Its totient is φ = 2977632.

The previous prime is 3001387. The next prime is 3001421. The reversal of 3001391 is 1931003.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1931003 = 907 ⋅2129.

It is a cyclic number.

It is not a de Polignac number, because 3001391 - 2² = 3001387 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3001321) 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 3 ways as a sum of consecutive naturals, for example, 11690 + ... + 11943.

It is an arithmetic number, because the mean of its divisors is an integer number (756288).

Almost surely, 2^3001391 is an apocalyptic number.

3001391 is a deficient number, since it is larger than the sum of its proper divisors (23761).

3001391 is a wasteful number, since it uses less digits than its factorization.

3001391 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23760.

The product of its (nonzero) digits is 81, while the sum is 17.

The square root of 3001391 is about 1732.4523081459. The cubic root of 3001391 is about 144.2472443548.

Adding to 3001391 its reverse (1931003), we get a palindrome (4932394).

The spelling of 3001391 in words is "three million, one thousand, three hundred ninety-one".