671371436 has 12 divisors (see below), whose sum is σ = 1178288328. Its totient is φ = 334717632.

The previous prime is 671371417. The next prime is 671371451. The reversal of 671371436 is 634173176.

It is a self number, because there is not a number n which added to its sum of digits gives 671371436.

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, 240461 + ... + 243236.

It is an arithmetic number, because the mean of its divisors is an integer number (98190694).

Almost surely, 2^671371436 is an apocalyptic number.

It is an amenable number.

671371436 is a deficient number, since it is larger than the sum of its proper divisors (506916892).

671371436 is a wasteful number, since it uses less digits than its factorization.

671371436 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 484048 (or 484046 counting only the distinct ones).

The product of its digits is 63504, while the sum is 38.

The square root of 671371436 is about 25910.8362659332. The cubic root of 671371436 is about 875.6306467468.

The spelling of 671371436 in words is "six hundred seventy-one million, three hundred seventy-one thousand, four hundred thirty-six".