823601 has 2 divisors, whose sum is σ = 823602. Its totient is φ = 823600.

The previous prime is 823591. The next prime is 823619. The reversal of 823601 is 106328.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 462400 + 361201 = 680^2 + 601^2 .

It is a cyclic number.

It is not a de Polignac number, because 823601 - 2¹⁴ = 807217 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (823621) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 411800 + 411801.

It is an arithmetic number, because the mean of its divisors is an integer number (411801).

2⁸²³⁶⁰¹ is an apocalyptic number.

It is an amenable number.

823601 is a deficient number, since it is larger than the sum of its proper divisors (1).

823601 is an equidigital number, since it uses as much as digits as its factorization.

823601 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 288, while the sum is 20.

The square root of 823601 is about 907.5246553125. The cubic root of 823601 is about 93.7358283764.

Adding to 823601 its reverse (106328), we get a palindrome (929929).

The spelling of 823601 in words is "eight hundred twenty-three thousand, six hundred one".