673769 has 2 divisors, whose sum is σ = 673770. Its totient is φ = 673768.

The previous prime is 673747. The next prime is 673781. The reversal of 673769 is 967376.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 672400 + 1369 = 820^2 + 37^2 .

It is a cyclic number.

It is not a de Polignac number, because 673769 - 2⁸ = 673513 is a prime.

It is a super-2 number, since 2×673769² = 907929330722, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (673069) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 336884 + 336885.

It is an arithmetic number, because the mean of its divisors is an integer number (336885).

2⁶⁷³⁷⁶⁹ is an apocalyptic number.

It is an amenable number.

673769 is a deficient number, since it is larger than the sum of its proper divisors (1).

673769 is an equidigital number, since it uses as much as digits as its factorization.

673769 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 47628, while the sum is 38.

The square root of 673769 is about 820.8343316407. The cubic root of 673769 is about 87.6671742771.

The spelling of 673769 in words is "six hundred seventy-three thousand, seven hundred sixty-nine".