671743036 has 6 divisors (see below), whose sum is σ = 1175550320. Its totient is φ = 335871516.

The previous prime is 671743003. The next prime is 671743067. The reversal of 671743036 is 630347176.

It is a junction number, because it is equal to n+sod(n) for n = 671742986 and 671743004.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 83967876 + ... + 83967883.

Almost surely, 2^671743036 is an apocalyptic number.

It is an amenable number.

671743036 is a deficient number, since it is larger than the sum of its proper divisors (503807284).

671743036 is a wasteful number, since it uses less digits than its factorization.

671743036 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 167935763 (or 167935761 counting only the distinct ones).

The product of its (nonzero) digits is 63504, while the sum is 37.

The square root of 671743036 is about 25918.0060189822. The cubic root of 671743036 is about 875.7921690262.

The spelling of 671743036 in words is "six hundred seventy-one million, seven hundred forty-three thousand, thirty-six".