2083691977 has 2 divisors, whose sum is σ = 2083691978. Its totient is φ = 2083691976.

The previous prime is 2083691959. The next prime is 2083691983. The reversal of 2083691977 is 7791963802.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1594884096 + 488807881 = 39936^2 + 22109^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2083691977 is a prime.

It is not a weakly prime, because it can be changed into another prime (2083691947) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1041845988 + 1041845989.

It is an arithmetic number, because the mean of its divisors is an integer number (1041845989).

Almost surely, 2^2083691977 is an apocalyptic number.

It is an amenable number.

2083691977 is a deficient number, since it is larger than the sum of its proper divisors (1).

2083691977 is an equidigital number, since it uses as much as digits as its factorization.

2083691977 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1143072, while the sum is 52.

The square root of 2083691977 is about 45647.4750342229. The cubic root of 2083691977 is about 1277.2556716574.

The spelling of 2083691977 in words is "two billion, eighty-three million, six hundred ninety-one thousand, nine hundred seventy-seven".