11797605 has 24 divisors (see below), whose sum is σ = 20531160. Its totient is φ = 6266880.

The previous prime is 11797601. The next prime is 11797607. The reversal of 11797605 is 50679711.

It can be written as a sum of positive squares in 4 ways, for example, as 6066369 + 5731236 = 2463^2 + 2394^2 .

It is not a de Polignac number, because 11797605 - 2² = 11797601 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 11797605.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11797601) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 18085 + ... + 18725.

It is an arithmetic number, because the mean of its divisors is an integer number (855465).

Almost surely, 2^11797605 is an apocalyptic number.

11797605 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

11797605 is a deficient number, since it is larger than the sum of its proper divisors (8733555).

11797605 is a wasteful number, since it uses less digits than its factorization.

11797605 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1061 (or 1058 counting only the distinct ones).

The product of its (nonzero) digits is 13230, while the sum is 36.

The square root of 11797605 is about 3434.7641840452. The cubic root of 11797605 is about 227.6484077753.

The spelling of 11797605 in words is "eleven million, seven hundred ninety-seven thousand, six hundred five".