260170997 has 2 divisors, whose sum is σ = 260170998. Its totient is φ = 260170996.

The previous prime is 260170979. The next prime is 260171017. The reversal of 260170997 is 799071062.

It is a happy number.

Together with previous prime (260170979) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 169806961 + 90364036 = 13031^2 + 9506^2 .

It is a cyclic number.

It is not a de Polignac number, because 260170997 - 2⁸ = 260170741 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (260173997) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 130085498 + 130085499.

It is an arithmetic number, because the mean of its divisors is an integer number (130085499).

Almost surely, 2^260170997 is an apocalyptic number.

It is an amenable number.

260170997 is a deficient number, since it is larger than the sum of its proper divisors (1).

260170997 is an equidigital number, since it uses as much as digits as its factorization.

260170997 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 47628, while the sum is 41.

The square root of 260170997 is about 16129.8170169410. The cubic root of 260170997 is about 638.3903209005.

The spelling of 260170997 in words is "two hundred sixty million, one hundred seventy thousand, nine hundred ninety-seven".