2731087 has 2 divisors, whose sum is σ = 2731088. Its totient is φ = 2731086.

The previous prime is 2731063. The next prime is 2731103. The reversal of 2731087 is 7801372.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2731087 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2731187) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1365543 + 1365544.

It is an arithmetic number, because the mean of its divisors is an integer number (1365544).

2^2731087 is an apocalyptic number.

2731087 is a deficient number, since it is larger than the sum of its proper divisors (1).

2731087 is an equidigital number, since it uses as much as digits as its factorization.

2731087 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2352, while the sum is 28.

The square root of 2731087 is about 1652.6000726129. The cubic root of 2731087 is about 139.7800457670.

The spelling of 2731087 in words is "two million, seven hundred thirty-one thousand, eighty-seven".