2785613 has 2 divisors, whose sum is σ = 2785614. Its totient is φ = 2785612.

The previous prime is 2785597. The next prime is 2785631. The reversal of 2785613 is 3165872.

It is a happy number.

2785613 is nontrivially palindromic in base 9.

Together with next prime (2785631) 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., 2778889 + 6724 = 1667^2 + 82^2 .

It is a cyclic number.

It is not a de Polignac number, because 2785613 - 2⁴ = 2785597 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2785613.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2785633) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1392806 + 1392807.

It is an arithmetic number, because the mean of its divisors is an integer number (1392807).

2^2785613 is an apocalyptic number.

It is an amenable number.

2785613 is a deficient number, since it is larger than the sum of its proper divisors (1).

2785613 is an equidigital number, since it uses as much as digits as its factorization.

2785613 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 10080, while the sum is 32.

The square root of 2785613 is about 1669.0155781178. The cubic root of 2785613 is about 140.7041564558.

The spelling of 2785613 in words is "two million, seven hundred eighty-five thousand, six hundred thirteen".