673457 has 2 divisors, whose sum is σ = 673458. Its totient is φ = 673456.

The previous prime is 673451. The next prime is 673459. The reversal of 673457 is 754376.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 512656 + 160801 = 716^2 + 401^2 .

It is a cyclic number.

It is not a de Polignac number, because 673457 - 2⁴ = 673441 is a prime.

Together with 673459, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (673451) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 336728 + 336729.

It is an arithmetic number, because the mean of its divisors is an integer number (336729).

2⁶⁷³⁴⁵⁷ is an apocalyptic number.

It is an amenable number.

673457 is a deficient number, since it is larger than the sum of its proper divisors (1).

673457 is an equidigital number, since it uses as much as digits as its factorization.

673457 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 17640, while the sum is 32.

The square root of 673457 is about 820.6442591038. The cubic root of 673457 is about 87.6536402710.

The spelling of 673457 in words is "six hundred seventy-three thousand, four hundred fifty-seven".