10997597 has 4 divisors (see below), whose sum is σ = 11843580. Its totient is φ = 10151616.

The previous prime is 10997593. The next prime is 10997603. The reversal of 10997597 is 79579901.

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: 79579901 = 199 ⋅399899.

It can be written as a sum of positive squares in 2 ways, for example, as 5112121 + 5885476 = 2261^2 + 2426^2 .

It is a cyclic number.

It is not a de Polignac number, because 10997597 - 2² = 10997593 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 (10997593) 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, 422972 + ... + 422997.

It is an arithmetic number, because the mean of its divisors is an integer number (2960895).

Almost surely, 2^10997597 is an apocalyptic number.

It is an amenable number.

10997597 is a deficient number, since it is larger than the sum of its proper divisors (845983).

10997597 is an equidigital number, since it uses as much as digits as its factorization.

10997597 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 845982.

The product of its (nonzero) digits is 178605, while the sum is 47.

The square root of 10997597 is about 3316.2625046881. The cubic root of 10997597 is about 222.3818132589.

The spelling of 10997597 in words is "ten million, nine hundred ninety-seven thousand, five hundred ninety-seven".