2782613 has 2 divisors, whose sum is σ = 2782614. Its totient is φ = 2782612.

The previous prime is 2782601. The next prime is 2782631. The reversal of 2782613 is 3162872.

It is a happy number.

Together with next prime (2782631) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1620529 + 1162084 = 1273^2 + 1078^2 .

It is a cyclic number.

It is not a de Polignac number, because 2782613 - 2⁴ = 2782597 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2782643) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1391306 + 1391307.

It is an arithmetic number, because the mean of its divisors is an integer number (1391307).

2^2782613 is an apocalyptic number.

It is an amenable number.

2782613 is a deficient number, since it is larger than the sum of its proper divisors (1).

2782613 is an equidigital number, since it uses as much as digits as its factorization.

2782613 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4032, while the sum is 29.

The square root of 2782613 is about 1668.1166026390. The cubic root of 2782613 is about 140.6536272912.

The spelling of 2782613 in words is "two million, seven hundred eighty-two thousand, six hundred thirteen".