2190077 has 2 divisors, whose sum is σ = 2190078. Its totient is φ = 2190076.

The previous prime is 2190047. The next prime is 2190079. The reversal of 2190077 is 7700912.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1378276 + 811801 = 1174^2 + 901^2 .

It is a cyclic number.

It is not a de Polignac number, because 2190077 - 2¹⁰ = 2189053 is a prime.

Together with 2190079, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2190079) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1095038 + 1095039.

It is an arithmetic number, because the mean of its divisors is an integer number (1095039).

2^2190077 is an apocalyptic number.

It is an amenable number.

2190077 is a deficient number, since it is larger than the sum of its proper divisors (1).

2190077 is an equidigital number, since it uses as much as digits as its factorization.

2190077 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 882, while the sum is 26.

The square root of 2190077 is about 1479.8908743553. The cubic root of 2190077 is about 129.8633079984.

Adding to 2190077 its reverse (7700912), we get a palindrome (9890989).

The spelling of 2190077 in words is "two million, one hundred ninety thousand, seventy-seven".