6371591 has 2 divisors, whose sum is σ = 6371592. Its totient is φ = 6371590.

The previous prime is 6371581. The next prime is 6371623. The reversal of 6371591 is 1951736.

It is an a-pointer prime, because the next prime (6371623) can be obtained adding 6371591 to its sum of digits (32).

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6371591 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 (6371581) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3185795 + 3185796.

It is an arithmetic number, because the mean of its divisors is an integer number (3185796).

Almost surely, 2^6371591 is an apocalyptic number.

6371591 is a deficient number, since it is larger than the sum of its proper divisors (1).

6371591 is an equidigital number, since it uses as much as digits as its factorization.

6371591 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 6371591 is about 2524.2010617223. The cubic root of 6371591 is about 185.3884314929.

The spelling of 6371591 in words is "six million, three hundred seventy-one thousand, five hundred ninety-one".