2106677 has 2 divisors, whose sum is σ = 2106678. Its totient is φ = 2106676.

The previous prime is 2106673. The next prime is 2106679. The reversal of 2106677 is 7766012.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1234321 + 872356 = 1111^2 + 934^2 .

It is a cyclic number.

It is not a de Polignac number, because 2106677 - 2² = 2106673 is a prime.

Together with 2106679, it forms a pair of twin primes.

It is a Chen prime.

It is an Ulam number.

It is equal to p₁₅₆₂₇₈ and since 2106677 and 156278 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2106673) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1053338 + 1053339.

It is an arithmetic number, because the mean of its divisors is an integer number (1053339).

2^2106677 is an apocalyptic number.

It is an amenable number.

2106677 is a deficient number, since it is larger than the sum of its proper divisors (1).

2106677 is an equidigital number, since it uses as much as digits as its factorization.

2106677 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3528, while the sum is 29.

The square root of 2106677 is about 1451.4396301603. The cubic root of 2106677 is about 128.1934939743.

The spelling of 2106677 in words is "two million, one hundred six thousand, six hundred seventy-seven".