2567671 has 2 divisors, whose sum is σ = 2567672. Its totient is φ = 2567670.

The previous prime is 2567647. The next prime is 2567683. The reversal of 2567671 is 1767652.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2567671 - 2⁵ = 2567639 is a prime.

It is an Ulam number.

2567671 is a lucky number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2567611) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1283835 + 1283836.

It is an arithmetic number, because the mean of its divisors is an integer number (1283836).

2^2567671 is an apocalyptic number.

2567671 is a deficient number, since it is larger than the sum of its proper divisors (1).

2567671 is an equidigital number, since it uses as much as digits as its factorization.

2567671 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 17640, while the sum is 34.

The square root of 2567671 is about 1602.3953944018. The cubic root of 2567671 is about 136.9345772487.

The spelling of 2567671 in words is "two million, five hundred sixty-seven thousand, six hundred seventy-one".