671323 has 2 divisors, whose sum is σ = 671324. Its totient is φ = 671322.

The previous prime is 671303. The next prime is 671339. The reversal of 671323 is 323176.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 671323 - 2⁹ = 670811 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 671294 and 671303.

It is not a weakly prime, because it can be changed into another prime (671303) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 335661 + 335662.

It is an arithmetic number, because the mean of its divisors is an integer number (335662).

2⁶⁷¹³²³ is an apocalyptic number.

671323 is a deficient number, since it is larger than the sum of its proper divisors (1).

671323 is an equidigital number, since it uses as much as digits as its factorization.

671323 is an evil number, because the sum of its binary digits is even.

The product of its digits is 756, while the sum is 22.

The square root of 671323 is about 819.3430295060. The cubic root of 671323 is about 87.5609588823.

Adding to 671323 its reverse (323176), we get a palindrome (994499).

The spelling of 671323 in words is "six hundred seventy-one thousand, three hundred twenty-three".