1288597 has 2 divisors, whose sum is σ = 1288598. Its totient is φ = 1288596.

The previous prime is 1288571. The next prime is 1288603. The reversal of 1288597 is 7958821.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1094116 + 194481 = 1046^2 + 441^2 .

It is a cyclic number.

It is not a de Polignac number, because 1288597 - 2¹⁵ = 1255829 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1288697) 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, 644298 + 644299.

It is an arithmetic number, because the mean of its divisors is an integer number (644299).

2^1288597 is an apocalyptic number.

It is an amenable number.

1288597 is a deficient number, since it is larger than the sum of its proper divisors (1).

1288597 is an equidigital number, since it uses as much as digits as its factorization.

1288597 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 40320, while the sum is 40.

The square root of 1288597 is about 1135.1638648230. The cubic root of 1288597 is about 108.8192442261.

The spelling of 1288597 in words is "one million, two hundred eighty-eight thousand, five hundred ninety-seven".