673431717 has 16 divisors (see below), whose sum is σ = 1027774080. Its totient is φ = 384220992.

The previous prime is 673431713. The next prime is 673431719. The reversal of 673431717 is 717134376.

It is a happy number.

It is not a de Polignac number, because 673431717 - 2² = 673431713 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (673431713) 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 in 15 ways as a sum of consecutive naturals, for example, 10842 + ... + 38267.

It is an arithmetic number, because the mean of its divisors is an integer number (64235880).

Almost surely, 2^673431717 is an apocalyptic number.

It is an amenable number.

673431717 is a deficient number, since it is larger than the sum of its proper divisors (354342363).

673431717 is a wasteful number, since it uses less digits than its factorization.

673431717 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49772.

The product of its digits is 74088, while the sum is 39.

The square root of 673431717 is about 25950.5629418708. The cubic root of 673431717 is about 876.5254335622.

The spelling of 673431717 in words is "six hundred seventy-three million, four hundred thirty-one thousand, seven hundred seventeen".