260974839 has 4 divisors (see below), whose sum is σ = 347966456. Its totient is φ = 173983224.

The previous prime is 260974811. The next prime is 260974843. The reversal of 260974839 is 938479062.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 260974839 - 2²⁴ = 244197623 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 (260974039) 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, 43495804 + ... + 43495809.

It is an arithmetic number, because the mean of its divisors is an integer number (86991614).

Almost surely, 2^260974839 is an apocalyptic number.

260974839 is a deficient number, since it is larger than the sum of its proper divisors (86991617).

260974839 is an equidigital number, since it uses as much as digits as its factorization.

260974839 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86991616.

The product of its (nonzero) digits is 653184, while the sum is 48.

The square root of 260974839 is about 16154.7156892345. The cubic root of 260974839 is about 639.0471163164.

The spelling of 260974839 in words is "two hundred sixty million, nine hundred seventy-four thousand, eight hundred thirty-nine".