2787259 has 2 divisors, whose sum is σ = 2787260. Its totient is φ = 2787258.

The previous prime is 2787251. The next prime is 2787271. The reversal of 2787259 is 9527872.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2787259 - 2³ = 2787251 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (2787251) 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, 1393629 + 1393630.

It is an arithmetic number, because the mean of its divisors is an integer number (1393630).

2^2787259 is an apocalyptic number.

2787259 is a deficient number, since it is larger than the sum of its proper divisors (1).

2787259 is an equidigital number, since it uses as much as digits as its factorization.

2787259 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 70560, while the sum is 40.

The square root of 2787259 is about 1669.5086103402. The cubic root of 2787259 is about 140.7318647125.

The spelling of 2787259 in words is "two million, seven hundred eighty-seven thousand, two hundred fifty-nine".