2171077 has 2 divisors, whose sum is σ = 2171078. Its totient is φ = 2171076.

The previous prime is 2171021. The next prime is 2171089. The reversal of 2171077 is 7701712.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1934881 + 236196 = 1391^2 + 486^2 .

It is a cyclic number.

It is not a de Polignac number, because 2171077 - 2¹¹ = 2169029 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2171017) 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, 1085538 + 1085539.

It is an arithmetic number, because the mean of its divisors is an integer number (1085539).

2^2171077 is an apocalyptic number.

It is an amenable number.

2171077 is a deficient number, since it is larger than the sum of its proper divisors (1).

2171077 is an equidigital number, since it uses as much as digits as its factorization.

2171077 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 686, while the sum is 25.

The square root of 2171077 is about 1473.4574985387. The cubic root of 2171077 is about 129.4866739417.

Adding to 2171077 its reverse (7701712), we get a palindrome (9872789).

The spelling of 2171077 in words is "two million, one hundred seventy-one thousand, seventy-seven".