673553 has 2 divisors, whose sum is σ = 673554. Its totient is φ = 673552.

The previous prime is 673549. The next prime is 673567. The reversal of 673553 is 355376.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 588289 + 85264 = 767^2 + 292^2 .

It is a cyclic number.

It is not a de Polignac number, because 673553 - 2² = 673549 is a prime.

It is not a weakly prime, because it can be changed into another prime (673513) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 336776 + 336777.

It is an arithmetic number, because the mean of its divisors is an integer number (336777).

2⁶⁷³⁵⁵³ is an apocalyptic number.

It is an amenable number.

673553 is a deficient number, since it is larger than the sum of its proper divisors (1).

673553 is an equidigital number, since it uses as much as digits as its factorization.

673553 is an evil number, because the sum of its binary digits is even.

The product of its digits is 9450, while the sum is 29.

The square root of 673553 is about 820.7027476498. The cubic root of 673553 is about 87.6578050257.

The spelling of 673553 in words is "six hundred seventy-three thousand, five hundred fifty-three".