9313391 has 2 divisors, whose sum is σ = 9313392. Its totient is φ = 9313390.

The previous prime is 9313349. The next prime is 9313393. The reversal of 9313391 is 1933139.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-9313391 is a prime.

Together with 9313393, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9313393) 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 as a sum of consecutive naturals, namely, 4656695 + 4656696.

It is an arithmetic number, because the mean of its divisors is an integer number (4656696).

Almost surely, 2^9313391 is an apocalyptic number.

9313391 is a deficient number, since it is larger than the sum of its proper divisors (1).

9313391 is an equidigital number, since it uses as much as digits as its factorization.

9313391 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2187, while the sum is 29.

The square root of 9313391 is about 3051.7848875699. The cubic root of 9313391 is about 210.3952571013.

The spelling of 9313391 in words is "nine million, three hundred thirteen thousand, three hundred ninety-one".