673641071 has 2 divisors, whose sum is σ = 673641072. Its totient is φ = 673641070.

The previous prime is 673641061. The next prime is 673641091. The reversal of 673641071 is 170146376.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 673641071 - 2²⁶ = 606532207 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (673641061) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 336820535 + 336820536.

It is an arithmetic number, because the mean of its divisors is an integer number (336820536).

Almost surely, 2^673641071 is an apocalyptic number.

673641071 is a deficient number, since it is larger than the sum of its proper divisors (1).

673641071 is an equidigital number, since it uses as much as digits as its factorization.

673641071 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 21168, while the sum is 35.

The square root of 673641071 is about 25954.5963366799. The cubic root of 673641071 is about 876.6162544965.

The spelling of 673641071 in words is "six hundred seventy-three million, six hundred forty-one thousand, seventy-one".