673438717 has 8 divisors (see below), whose sum is σ = 810152000. Its totient is φ = 546852384.

The previous prime is 673438693. The next prime is 673438721. The reversal of 673438717 is 717834376.

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 673438717 - 2¹⁵ = 673405949 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (673438747) 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, 2531592 + ... + 2531857.

It is an arithmetic number, because the mean of its divisors is an integer number (101269000).

Almost surely, 2^673438717 is an apocalyptic number.

It is an amenable number.

673438717 is a deficient number, since it is larger than the sum of its proper divisors (136713283).

673438717 is a wasteful number, since it uses less digits than its factorization.

673438717 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5063475.

The product of its digits is 592704, while the sum is 46.

The square root of 673438717 is about 25950.6978133537. The cubic root of 673438717 is about 876.5284705723.

It can be divided in two parts, 6734 and 38717, that added together give a triangular number (45451 = T₃₀₁).

The spelling of 673438717 in words is "six hundred seventy-three million, four hundred thirty-eight thousand, seven hundred seventeen".