1161697 has 4 divisors (see below), whose sum is σ = 1164996. Its totient is φ = 1158400.

The previous prime is 1161691. The next prime is 1161703. The reversal of 1161697 is 7961611.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (1161691) and next prime (1161703).

It can be written as a sum of positive squares in 2 ways, for example, as 720801 + 440896 = 849^2 + 664^2 .

It is a cyclic number.

It is not a de Polignac number, because 1161697 - 2¹¹ = 1159649 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1161691) 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 in 3 ways as a sum of consecutive naturals, for example, 1048 + ... + 1849.

It is an arithmetic number, because the mean of its divisors is an integer number (291249).

2^1161697 is an apocalyptic number.

It is an amenable number.

1161697 is a deficient number, since it is larger than the sum of its proper divisors (3299).

1161697 is an equidigital number, since it uses as much as digits as its factorization.

1161697 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3298.

The product of its digits is 2268, while the sum is 31.

The square root of 1161697 is about 1077.8204859809. The cubic root of 1161697 is about 105.1229700627.

The spelling of 1161697 in words is "one million, one hundred sixty-one thousand, six hundred ninety-seven".