6751391 has 2 divisors, whose sum is σ = 6751392. Its totient is φ = 6751390.

The previous prime is 6751373. The next prime is 6751399. The reversal of 6751391 is 1931576.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6751391 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6751399) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3375695 + 3375696.

It is an arithmetic number, because the mean of its divisors is an integer number (3375696).

Almost surely, 2^6751391 is an apocalyptic number.

6751391 is a deficient number, since it is larger than the sum of its proper divisors (1).

6751391 is an equidigital number, since it uses as much as digits as its factorization.

6751391 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5670, while the sum is 32.

The square root of 6751391 is about 2598.3438956381. The cubic root of 6751391 is about 189.0011384458.

The spelling of 6751391 in words is "six million, seven hundred fifty-one thousand, three hundred ninety-one".