1169897 has 4 divisors (see below), whose sum is σ = 1180740. Its totient is φ = 1159056.

The previous prime is 1169879. The next prime is 1169899. The reversal of 1169897 is 7989611.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7989611 = 7 ⋅1141373.

It can be written as a sum of positive squares in 2 ways, for example, as 414736 + 755161 = 644^2 + 869^2 .

It is a cyclic number.

It is not a de Polignac number, because 1169897 - 2²⁰ = 121321 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1169899) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5258 + ... + 5475.

It is an arithmetic number, because the mean of its divisors is an integer number (295185).

2^1169897 is an apocalyptic number.

It is an amenable number.

1169897 is a deficient number, since it is larger than the sum of its proper divisors (10843).

1169897 is a wasteful number, since it uses less digits than its factorization.

1169897 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10842.

The product of its digits is 27216, while the sum is 41.

The square root of 1169897 is about 1081.6177698244. The cubic root of 1169897 is about 105.3697320752.

It can be divided in two parts, 11 and 69897, that multiplied together give a palindrome (768867).

The spelling of 1169897 in words is "one million, one hundred sixty-nine thousand, eight hundred ninety-seven".