673397 has 2 divisors, whose sum is σ = 673398. Its totient is φ = 673396.

The previous prime is 673391. The next prime is 673399. The reversal of 673397 is 793376.

673397 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 401956 + 271441 = 634^2 + 521^2 .

It is a cyclic number.

It is not a de Polignac number, because 673397 - 2⁴ = 673381 is a prime.

Together with 673399, it forms a pair of twin primes.

It is a Chen prime.

It is a d-powerful number, because it can be written as 6² + 7⁴ + 3⁷ + 3⁹ + 9⁶ + 7⁶ .

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (673391) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 336698 + 336699.

It is an arithmetic number, because the mean of its divisors is an integer number (336699).

2⁶⁷³³⁹⁷ is an apocalyptic number.

It is an amenable number.

673397 is a deficient number, since it is larger than the sum of its proper divisors (1).

673397 is an equidigital number, since it uses as much as digits as its factorization.

673397 is an evil number, because the sum of its binary digits is even.

The product of its digits is 23814, while the sum is 35.

The square root of 673397 is about 820.6077016456. The cubic root of 673397 is about 87.6510370983.

The spelling of 673397 in words is "six hundred seventy-three thousand, three hundred ninety-seven".