617201671 has 2 divisors, whose sum is σ = 617201672. Its totient is φ = 617201670.

The previous prime is 617201633. The next prime is 617201731. The reversal of 617201671 is 176102716.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 617201671 - 2²⁹ = 80330759 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (617202671) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 308600835 + 308600836.

It is an arithmetic number, because the mean of its divisors is an integer number (308600836).

Almost surely, 2^617201671 is an apocalyptic number.

617201671 is a deficient number, since it is larger than the sum of its proper divisors (1).

617201671 is an equidigital number, since it uses as much as digits as its factorization.

617201671 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3528, while the sum is 31.

The square root of 617201671 is about 24843.5438494592. The cubic root of 617201671 is about 851.4170922126.

The spelling of 617201671 in words is "six hundred seventeen million, two hundred one thousand, six hundred seventy-one".