260406317 has 2 divisors, whose sum is σ = 260406318. Its totient is φ = 260406316.

The previous prime is 260406281. The next prime is 260406337. The reversal of 260406317 is 713604062.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 235346281 + 25060036 = 15341^2 + 5006^2 .

It is a cyclic number.

It is not a de Polignac number, because 260406317 - 2¹² = 260402221 is a prime.

It is a super-2 number, since 2×260406317² = 135622899867008978, which contains 22 as substring.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 260406317.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (260406337) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 130203158 + 130203159.

It is an arithmetic number, because the mean of its divisors is an integer number (130203159).

Almost surely, 2^260406317 is an apocalyptic number.

It is an amenable number.

260406317 is a deficient number, since it is larger than the sum of its proper divisors (1).

260406317 is an equidigital number, since it uses as much as digits as its factorization.

260406317 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6048, while the sum is 29.

The square root of 260406317 is about 16137.1099333183. The cubic root of 260406317 is about 638.5827337656.

The spelling of 260406317 in words is "two hundred sixty million, four hundred six thousand, three hundred seventeen".