849601 has 2 divisors, whose sum is σ = 849602. Its totient is φ = 849600.

The previous prime is 849599. The next prime is 849649. The reversal of 849601 is 106948.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 810000 + 39601 = 900^2 + 199^2 .

It is a cyclic number.

It is not a de Polignac number, because 849601 - 2¹ = 849599 is a prime.

Together with 849599, it forms a pair of twin primes.

It is equal to p₆₇₅₉₁ and since 849601 and 67591 have the same sum of digits, it is a Honaker prime.

It is a self number, because there is not a number n which added to its sum of digits gives 849601.

It is not a weakly prime, because it can be changed into another prime (849691) 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, 424800 + 424801.

It is an arithmetic number, because the mean of its divisors is an integer number (424801).

2⁸⁴⁹⁶⁰¹ is an apocalyptic number.

It is an amenable number.

849601 is a deficient number, since it is larger than the sum of its proper divisors (1).

849601 is an equidigital number, since it uses as much as digits as its factorization.

849601 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1728, while the sum is 28.

The square root of 849601 is about 921.7380321979. The cubic root of 849601 is about 94.7119994370.

The spelling of 849601 in words is "eight hundred forty-nine thousand, six hundred one".