3031393 has 8 divisors (see below), whose sum is σ = 3224000. Its totient is φ = 2842128.

The previous prime is 3031387. The next prime is 3031403. The reversal of 3031393 is 3931303.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3031393 is a prime.

It is an Ulam number.

It is a Duffinian number.

3031393 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (3031333) 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, 1183 + ... + 2731.

It is an arithmetic number, because the mean of its divisors is an integer number (403000).

Almost surely, 2^3031393 is an apocalyptic number.

It is an amenable number.

3031393 is a deficient number, since it is larger than the sum of its proper divisors (192607).

3031393 is a wasteful number, since it uses less digits than its factorization.

3031393 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1671.

The product of its (nonzero) digits is 729, while the sum is 22.

The square root of 3031393 is about 1741.0896013704. The cubic root of 3031393 is about 144.7262850633.

Adding to 3031393 its reverse (3931303), we get a palindrome (6962696).

The spelling of 3031393 in words is "three million, thirty-one thousand, three hundred ninety-three".