671318036 has 6 divisors (see below), whose sum is σ = 1174806570. Its totient is φ = 335659016.

The previous prime is 671318009. The next prime is 671318057. The reversal of 671318036 is 630813176.

It can be written as a sum of positive squares in only one way, i.e., 604176400 + 67141636 = 24580^2 + 8194^2 .

It is a junction number, because it is equal to n+sod(n) for n = 671317987 and 671318005.

It is a congruent number.

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 as a sum of consecutive naturals, namely, 83914751 + ... + 83914758.

It is an arithmetic number, because the mean of its divisors is an integer number (195801095).

Almost surely, 2^671318036 is an apocalyptic number.

It is an amenable number.

671318036 is a deficient number, since it is larger than the sum of its proper divisors (503488534).

671318036 is a wasteful number, since it uses less digits than its factorization.

671318036 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 167829513 (or 167829511 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 35.

The square root of 671318036 is about 25909.8057885427. The cubic root of 671318036 is about 875.6074306283.

The spelling of 671318036 in words is "six hundred seventy-one million, three hundred eighteen thousand, thirty-six".