1197697 has 2 divisors, whose sum is σ = 1197698. Its totient is φ = 1197696.

The previous prime is 1197649. The next prime is 1197709. The reversal of 1197697 is 7967911.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 968256 + 229441 = 984^2 + 479^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1197697 is a prime.

It is not a weakly prime, because it can be changed into another prime (1197617) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 598848 + 598849.

It is an arithmetic number, because the mean of its divisors is an integer number (598849).

2^1197697 is an apocalyptic number.

It is an amenable number.

1197697 is a deficient number, since it is larger than the sum of its proper divisors (1).

1197697 is an equidigital number, since it uses as much as digits as its factorization.

1197697 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 23814, while the sum is 40.

The square root of 1197697 is about 1094.3934393078. The cubic root of 1197697 is about 106.1978327530.

The spelling of 1197697 in words is "one million, one hundred ninety-seven thousand, six hundred ninety-seven".