673660493 has 8 divisors (see below), whose sum is σ = 735090240. Its totient is φ = 612262080.

The previous prime is 673660487. The next prime is 673660499. The reversal of 673660493 is 394066376.

673660493 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (673660487) and next prime (673660499).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 673660493 - 2¹⁴ = 673644109 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (673660499) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 80021 + ... + 88037.

It is an arithmetic number, because the mean of its divisors is an integer number (91886280).

Almost surely, 2^673660493 is an apocalyptic number.

It is an amenable number.

673660493 is a deficient number, since it is larger than the sum of its proper divisors (61429747).

673660493 is a wasteful number, since it uses less digits than its factorization.

673660493 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15667.

The product of its (nonzero) digits is 489888, while the sum is 44.

The square root of 673660493 is about 25954.9704873652. The cubic root of 673660493 is about 876.6246791002.

It can be divided in two parts, 673 and 660493, that added together give a palindrome (661166).

The spelling of 673660493 in words is "six hundred seventy-three million, six hundred sixty thousand, four hundred ninety-three".