10997 has 4 divisors (see below), whose sum is σ = 12576. Its totient is φ = 9420.

The previous prime is 10993. The next prime is 11003. The reversal of 10997 is 79901.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 10997 - 2² = 10993 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a zygodrome in base 4.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10993) 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, 779 + ... + 792.

It is an arithmetic number, because the mean of its divisors is an integer number (3144).

2¹⁰⁹⁹⁷ is an apocalyptic number.

It is an amenable number.

10997 is a deficient number, since it is larger than the sum of its proper divisors (1579).

10997 is an equidigital number, since it uses as much as digits as its factorization.

10997 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1578.

The product of its (nonzero) digits is 567, while the sum is 26.

The square root of 10997 is about 104.8665819029. The cubic root of 10997 is about 22.2377789218.

The spelling of 10997 in words is "ten thousand, nine hundred ninety-seven".