671606938 has 8 divisors (see below), whose sum is σ = 1030838688. Its totient is φ = 327994044.

The previous prime is 671606893. The next prime is 671606941. The reversal of 671606938 is 839606176.

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3904606 + ... + 3904777.

It is an arithmetic number, because the mean of its divisors is an integer number (128854836).

Almost surely, 2^671606938 is an apocalyptic number.

671606938 is a deficient number, since it is larger than the sum of its proper divisors (359231750).

671606938 is a wasteful number, since it uses less digits than its factorization.

671606938 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7809428.

The product of its (nonzero) digits is 326592, while the sum is 46.

The square root of 671606938 is about 25915.3803367807. The cubic root of 671606938 is about 875.7330186235.

The spelling of 671606938 in words is "six hundred seventy-one million, six hundred six thousand, nine hundred thirty-eight".