2656783 has 2 divisors, whose sum is σ = 2656784. Its totient is φ = 2656782.

The previous prime is 2656757. The next prime is 2656807. The reversal of 2656783 is 3876562.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2656783 - 2⁹ = 2656271 is a prime.

It is a d-powerful number, because it can be written as 2⁷ + 6⁵ + 5⁹ + 6⁶ + 7⁶ + 8 + 3¹² .

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2656183) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1328391 + 1328392.

It is an arithmetic number, because the mean of its divisors is an integer number (1328392).

2^2656783 is an apocalyptic number.

2656783 is a deficient number, since it is larger than the sum of its proper divisors (1).

2656783 is an equidigital number, since it uses as much as digits as its factorization.

2656783 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 60480, while the sum is 37.

The square root of 2656783 is about 1629.9641100343. The cubic root of 2656783 is about 138.5007189769.

The spelling of 2656783 in words is "two million, six hundred fifty-six thousand, seven hundred eighty-three".