673187938 has 8 divisors (see below), whose sum is σ = 1034410860. Its totient is φ = 328384320.

The previous prime is 673187929. The next prime is 673187941. The reversal of 673187938 is 839781376.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 659102929 + 14085009 = 25673^2 + 3753^2 .

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

It is a super-3 number, since 3×673187938³ (a number of 27 digits) contains 333 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4104723 + ... + 4104886.

Almost surely, 2^673187938 is an apocalyptic number.

673187938 is a deficient number, since it is larger than the sum of its proper divisors (361222922).

673187938 is a wasteful number, since it uses less digits than its factorization.

673187938 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8209652.

The product of its digits is 1524096, while the sum is 52.

The square root of 673187938 is about 25945.8655280567. The cubic root of 673187938 is about 876.4196548187.

The spelling of 673187938 in words is "six hundred seventy-three million, one hundred eighty-seven thousand, nine hundred thirty-eight".