1977077 has 2 divisors, whose sum is σ = 1977078. Its totient is φ = 1977076.

The previous prime is 1977067. The next prime is 1977089. The reversal of 1977077 is 7707791.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1705636 + 271441 = 1306^2 + 521^2 .

It is a cyclic number.

It is not a de Polignac number, because 1977077 - 2¹⁰ = 1976053 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1977077.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1977067) 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, 988538 + 988539.

It is an arithmetic number, because the mean of its divisors is an integer number (988539).

2^1977077 is an apocalyptic number.

It is an amenable number.

1977077 is a deficient number, since it is larger than the sum of its proper divisors (1).

1977077 is an equidigital number, since it uses as much as digits as its factorization.

1977077 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 21609, while the sum is 38.

The square root of 1977077 is about 1406.0857015132. The cubic root of 1977077 is about 125.5089013437.

The spelling of 1977077 in words is "one million, nine hundred seventy-seven thousand, seventy-seven".