673540671 has 16 divisors (see below), whose sum is σ = 986423040. Its totient is φ = 406897920.

The previous prime is 673540583. The next prime is 673540729. The reversal of 673540671 is 176045376.

673540671 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 673540671 - 2¹⁴ = 673524287 is a prime.

It is a super-2 number, since 2×673540671² = 907314070982260482, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (673547671) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 255570 + ... + 258191.

It is an arithmetic number, because the mean of its divisors is an integer number (61651440).

Almost surely, 2^673540671 is an apocalyptic number.

673540671 is a deficient number, since it is larger than the sum of its proper divisors (312882369).

673540671 is a wasteful number, since it uses less digits than its factorization.

673540671 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 513806.

The product of its (nonzero) digits is 105840, while the sum is 39.

The square root of 673540671 is about 25952.6621177867. The cubic root of 673540671 is about 876.5727018052.

The spelling of 673540671 in words is "six hundred seventy-three million, five hundred forty thousand, six hundred seventy-one".