2742871 has 2 divisors, whose sum is σ = 2742872. Its totient is φ = 2742870.

The previous prime is 2742863. The next prime is 2742881. The reversal of 2742871 is 1782472.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2742871 - 2³ = 2742863 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2742811) 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, 1371435 + 1371436.

It is an arithmetic number, because the mean of its divisors is an integer number (1371436).

2^2742871 is an apocalyptic number.

2742871 is a deficient number, since it is larger than the sum of its proper divisors (1).

2742871 is an equidigital number, since it uses as much as digits as its factorization.

2742871 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6272, while the sum is 31.

The square root of 2742871 is about 1656.1615259388. The cubic root of 2742871 is about 139.9807966858.

The spelling of 2742871 in words is "two million, seven hundred forty-two thousand, eight hundred seventy-one".