260615879 has 2 divisors, whose sum is σ = 260615880. Its totient is φ = 260615878.

The previous prime is 260615867. The next prime is 260615881. The reversal of 260615879 is 978516062.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 260615879 - 2¹⁶ = 260550343 is a prime.

Together with 260615881, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (260615809) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 130307939 + 130307940.

It is an arithmetic number, because the mean of its divisors is an integer number (130307940).

Almost surely, 2^260615879 is an apocalyptic number.

260615879 is a deficient number, since it is larger than the sum of its proper divisors (1).

260615879 is an equidigital number, since it uses as much as digits as its factorization.

260615879 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 181440, while the sum is 44.

The square root of 260615879 is about 16143.6017976163. The cubic root of 260615879 is about 638.7539876666.

The spelling of 260615879 in words is "two hundred sixty million, six hundred fifteen thousand, eight hundred seventy-nine".