673736738 has 8 divisors (see below), whose sum is σ = 1010729388. Its totient is φ = 336826944.

The previous prime is 673736717. The next prime is 673736759. The reversal of 673736738 is 837637376.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (673736717) and next prime (673736759).

It can be written as a sum of positive squares in 2 ways, for example, as 663732169 + 10004569 = 25763^2 + 3163^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7070 + ... + 37382.

Almost surely, 2^673736738 is an apocalyptic number.

673736738 is a deficient number, since it is larger than the sum of its proper divisors (336992650).

673736738 is a wasteful number, since it uses less digits than its factorization.

673736738 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41428.

The product of its digits is 2667168, while the sum is 50.

The square root of 673736738 is about 25956.4392396184. The cubic root of 673736738 is about 876.6577500254.

The spelling of 673736738 in words is "six hundred seventy-three million, seven hundred thirty-six thousand, seven hundred thirty-eight".