646301 has 2 divisors, whose sum is σ = 646302. Its totient is φ = 646300.

The previous prime is 646291. The next prime is 646307. The reversal of 646301 is 103646.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 624100 + 22201 = 790^2 + 149^2 .

It is a cyclic number.

It is not a de Polignac number, because 646301 - 2⁶ = 646237 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (646307) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 323150 + 323151.

It is an arithmetic number, because the mean of its divisors is an integer number (323151).

2⁶⁴⁶³⁰¹ is an apocalyptic number.

It is an amenable number.

646301 is a deficient number, since it is larger than the sum of its proper divisors (1).

646301 is an equidigital number, since it uses as much as digits as its factorization.

646301 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 432, while the sum is 20.

The square root of 646301 is about 803.9284794060. The cubic root of 646301 is about 86.4592789497.

Adding to 646301 its reverse (103646), we get a palindrome (749947).

The spelling of 646301 in words is "six hundred forty-six thousand, three hundred one".