2116783 has 2 divisors, whose sum is σ = 2116784. Its totient is φ = 2116782.

The previous prime is 2116757. The next prime is 2116799. The reversal of 2116783 is 3876112.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2116783 is a prime.

It is an Ulam number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2116183) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1058391 + 1058392.

It is an arithmetic number, because the mean of its divisors is an integer number (1058392).

2^2116783 is an apocalyptic number.

2116783 is a deficient number, since it is larger than the sum of its proper divisors (1).

2116783 is an equidigital number, since it uses as much as digits as its factorization.

2116783 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2016, while the sum is 28.

The square root of 2116783 is about 1454.9168361113. The cubic root of 2116783 is about 128.3981539445.

The spelling of 2116783 in words is "two million, one hundred sixteen thousand, seven hundred eighty-three".