260617879 has 2 divisors, whose sum is σ = 260617880. Its totient is φ = 260617878.

The previous prime is 260617849. The next prime is 260617891. The reversal of 260617879 is 978716062.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 260617879 - 2¹⁵ = 260585111 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (260617829) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 130308939 + 130308940.

It is an arithmetic number, because the mean of its divisors is an integer number (130308940).

Almost surely, 2^260617879 is an apocalyptic number.

260617879 is a deficient number, since it is larger than the sum of its proper divisors (1).

260617879 is an equidigital number, since it uses as much as digits as its factorization.

260617879 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 254016, while the sum is 46.

The square root of 260617879 is about 16143.6637415427. The cubic root of 260617879 is about 638.7556216227.

The spelling of 260617879 in words is "two hundred sixty million, six hundred seventeen thousand, eight hundred seventy-nine".