1077997 has 2 divisors, whose sum is σ = 1077998. Its totient is φ = 1077996.

The previous prime is 1077977. The next prime is 1078001. The reversal of 1077997 is 7997701.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 630436 + 447561 = 794^2 + 669^2 .

It is a cyclic number.

It is not a de Polignac number, because 1077997 - 2¹⁵ = 1045229 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1077917) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 538998 + 538999.

It is an arithmetic number, because the mean of its divisors is an integer number (538999).

2^1077997 is an apocalyptic number.

It is an amenable number.

1077997 is a deficient number, since it is larger than the sum of its proper divisors (1).

1077997 is an equidigital number, since it uses as much as digits as its factorization.

1077997 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 27783, while the sum is 40.

The square root of 1077997 is about 1038.2663434784. The cubic root of 1077997 is about 102.5350901075.

The spelling of 1077997 in words is "one million, seventy-seven thousand, nine hundred ninety-seven".