1597369 has 2 divisors, whose sum is σ = 1597370. Its totient is φ = 1597368.

The previous prime is 1597361. The next prime is 1597381. The reversal of 1597369 is 9637951.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 831744 + 765625 = 912^2 + 875^2 .

It is an emirp because it is prime and its reverse (9637951) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1597369 - 2³ = 1597361 is a prime.

It is a super-2 number, since 2×1597369² = 5103175444322, which contains 22 as substring.

1597369 is a lucky number.

It is not a weakly prime, because it can be changed into another prime (1597361) 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, 798684 + 798685.

It is an arithmetic number, because the mean of its divisors is an integer number (798685).

2^1597369 is an apocalyptic number.

It is an amenable number.

1597369 is a deficient number, since it is larger than the sum of its proper divisors (1).

1597369 is an equidigital number, since it uses as much as digits as its factorization.

1597369 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 51030, while the sum is 40.

The square root of 1597369 is about 1263.8706421149. The cubic root of 1597369 is about 116.8965652677.

The spelling of 1597369 in words is "one million, five hundred ninety-seven thousand, three hundred sixty-nine".