2117677 has 2 divisors, whose sum is σ = 2117678. Its totient is φ = 2117676.

The previous prime is 2117671. The next prime is 2117699. The reversal of 2117677 is 7767112.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1929321 + 188356 = 1389^2 + 434^2 .

It is a cyclic number.

It is not a de Polignac number, because 2117677 - 2¹¹ = 2115629 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2117671) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1058838 + 1058839.

It is an arithmetic number, because the mean of its divisors is an integer number (1058839).

2^2117677 is an apocalyptic number.

It is an amenable number.

2117677 is a deficient number, since it is larger than the sum of its proper divisors (1).

2117677 is an equidigital number, since it uses as much as digits as its factorization.

2117677 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4116, while the sum is 31.

The square root of 2117677 is about 1455.2240377344. The cubic root of 2117677 is about 128.4162272494.

The spelling of 2117677 in words is "two million, one hundred seventeen thousand, six hundred seventy-seven".