2618779 has 2 divisors, whose sum is σ = 2618780. Its totient is φ = 2618778.

The previous prime is 2618773. The next prime is 2618797. The reversal of 2618779 is 9778162.

Together with next prime (2618797) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2618779 - 2⁵ = 2618747 is a prime.

It is not a weakly prime, because it can be changed into another prime (2618773) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1309389 + 1309390.

It is an arithmetic number, because the mean of its divisors is an integer number (1309390).

2^2618779 is an apocalyptic number.

2618779 is a deficient number, since it is larger than the sum of its proper divisors (1).

2618779 is an equidigital number, since it uses as much as digits as its factorization.

2618779 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 42336, while the sum is 40.

The square root of 2618779 is about 1618.2641935111. The cubic root of 2618779 is about 137.8371494945.

The spelling of 2618779 in words is "two million, six hundred eighteen thousand, seven hundred seventy-nine".