260993 has 4 divisors (see below), whose sum is σ = 262080. Its totient is φ = 259908.

The previous prime is 260987. The next prime is 260999. The reversal of 260993 is 399062.

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, and also a brilliant number, because the two primes have the same length.

It is an interprime number because it is at equal distance from previous prime (260987) and next prime (260999).

It is a cyclic number.

It is not a de Polignac number, because 260993 - 2¹⁶ = 195457 is a prime.

It is a super-3 number, since 3×260993³ = 53334451492099971, which contains 333 as substring.

It is an Ulam number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (260999) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5 + ... + 722.

It is an arithmetic number, because the mean of its divisors is an integer number (65520).

2²⁶⁰⁹⁹³ is an apocalyptic number.

It is an amenable number.

260993 is a deficient number, since it is larger than the sum of its proper divisors (1087).

260993 is an equidigital number, since it uses as much as digits as its factorization.

260993 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1086.

The product of its (nonzero) digits is 2916, while the sum is 29.

The square root of 260993 is about 510.8747400293. The cubic root of 260993 is about 63.9061939540.

The spelling of 260993 in words is "two hundred sixty thousand, nine hundred ninety-three".