11597797 has 4 divisors (see below), whose sum is σ = 11605356. Its totient is φ = 11590240.

The previous prime is 11597783. The next prime is 11597801. The reversal of 11597797 is 79779511.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 6220036 + 5377761 = 2494^2 + 2319^2 .

It is a cyclic number.

It is not a de Polignac number, because 11597797 - 2⁷ = 11597669 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11597717) 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, 568 + ... + 4849.

It is an arithmetic number, because the mean of its divisors is an integer number (2901339).

Almost surely, 2^11597797 is an apocalyptic number.

It is an amenable number.

11597797 is a deficient number, since it is larger than the sum of its proper divisors (7559).

11597797 is an equidigital number, since it uses as much as digits as its factorization.

11597797 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7558.

The product of its digits is 138915, while the sum is 46.

The square root of 11597797 is about 3405.5538462928. The cubic root of 11597797 is about 226.3559080084.

The spelling of 11597797 in words is "eleven million, five hundred ninety-seven thousand, seven hundred ninety-seven".