260975993 has 4 divisors (see below), whose sum is σ = 276327540. Its totient is φ = 245624448.

The previous prime is 260975977. The next prime is 260976019. The reversal of 260975993 is 399579062.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 399579062 = 2 ⋅199789531.

It can be written as a sum of positive squares in 2 ways, for example, as 209323024 + 51652969 = 14468^2 + 7187^2 .

It is a cyclic number.

It is not a de Polignac number, because 260975993 - 2⁴ = 260975977 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (260975903) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7675748 + ... + 7675781.

It is an arithmetic number, because the mean of its divisors is an integer number (69081885).

Almost surely, 2^260975993 is an apocalyptic number.

It is an amenable number.

260975993 is a deficient number, since it is larger than the sum of its proper divisors (15351547).

260975993 is a wasteful number, since it uses less digits than its factorization.

260975993 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15351546.

The product of its (nonzero) digits is 918540, while the sum is 50.

The square root of 260975993 is about 16154.7514063201. The cubic root of 260975993 is about 639.0480582453.

The spelling of 260975993 in words is "two hundred sixty million, nine hundred seventy-five thousand, nine hundred ninety-three".