672314641 has 2 divisors, whose sum is σ = 672314642. Its totient is φ = 672314640.

The previous prime is 672314581. The next prime is 672314653. The reversal of 672314641 is 146413276.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 672313041 + 1600 = 25929^2 + 40^2 .

It is a cyclic number.

It is not a de Polignac number, because 672314641 - 2¹⁷ = 672183569 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 672314597 and 672314606.

It is not a weakly prime, because it can be changed into another prime (672314441) 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, 336157320 + 336157321.

It is an arithmetic number, because the mean of its divisors is an integer number (336157321).

Almost surely, 2^672314641 is an apocalyptic number.

It is an amenable number.

672314641 is a deficient number, since it is larger than the sum of its proper divisors (1).

672314641 is an equidigital number, since it uses as much as digits as its factorization.

672314641 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 24192, while the sum is 34.

The square root of 672314641 is about 25929.0308534662. The cubic root of 672314641 is about 876.0405106437.

The spelling of 672314641 in words is "six hundred seventy-two million, three hundred fourteen thousand, six hundred forty-one".