671610004 has 24 divisors (see below), whose sum is σ = 1278268488. Its totient is φ = 306902400.

The previous prime is 671609989. The next prime is 671610013. The reversal of 671610004 is 400016176.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 15225604 + 656384400 = 3902^2 + 25620^2 .

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 58687 + ... + 69190.

It is an arithmetic number, because the mean of its divisors is an integer number (53261187).

Almost surely, 2^671610004 is an apocalyptic number.

It is an amenable number.

671610004 is a deficient number, since it is larger than the sum of its proper divisors (606658484).

671610004 is a wasteful number, since it uses less digits than its factorization.

671610004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 127995 (or 127993 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 25.

The square root of 671610004 is about 25915.4394907746. The cubic root of 671610004 is about 875.7343512449.

The spelling of 671610004 in words is "six hundred seventy-one million, six hundred ten thousand, four".