673199641 has 2 divisors, whose sum is σ = 673199642. Its totient is φ = 673199640.

The previous prime is 673199603. The next prime is 673199663. The reversal of 673199641 is 146991376.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 665382025 + 7817616 = 25795^2 + 2796^2 .

It is a cyclic number.

It is not a de Polignac number, because 673199641 - 2¹¹ = 673197593 is a prime.

It is equal to p_34935886 and since 673199641 and 34935886 have the same sum of digits, it is a Honaker prime.

It is a junction number, because it is equal to n+sod(n) for n = 673199591 and 673199600.

It is not a weakly prime, because it can be changed into another prime (673199141) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 336599820 + 336599821.

It is an arithmetic number, because the mean of its divisors is an integer number (336599821).

Almost surely, 2^673199641 is an apocalyptic number.

It is an amenable number.

673199641 is a deficient number, since it is larger than the sum of its proper divisors (1).

673199641 is an equidigital number, since it uses as much as digits as its factorization.

673199641 is an evil number, because the sum of its binary digits is even.

The product of its digits is 244944, while the sum is 46.

The square root of 673199641 is about 25946.0910543380. The cubic root of 673199641 is about 876.4247334797.

The spelling of 673199641 in words is "six hundred seventy-three million, one hundred ninety-nine thousand, six hundred forty-one".