6091391 has 2 divisors, whose sum is σ = 6091392. Its totient is φ = 6091390.

The previous prime is 6091387. The next prime is 6091409. The reversal of 6091391 is 1931906.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 6091391 - 2² = 6091387 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6091331) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3045695 + 3045696.

It is an arithmetic number, because the mean of its divisors is an integer number (3045696).

Almost surely, 2^6091391 is an apocalyptic number.

6091391 is a deficient number, since it is larger than the sum of its proper divisors (1).

6091391 is an equidigital number, since it uses as much as digits as its factorization.

6091391 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1458, while the sum is 29.

The square root of 6091391 is about 2468.0743505818. The cubic root of 6091391 is about 182.6300168152.

The spelling of 6091391 in words is "six million, ninety-one thousand, three hundred ninety-one".