671203536 has 20 divisors (see below), whose sum is σ = 1733942592. Its totient is φ = 223734496.

The previous prime is 671203523. The next prime is 671203543. The reversal of 671203536 is 635302176.

It is a junction number, because it is equal to n+sod(n) for n = 671203497 and 671203506.

It is a congruent number.

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, 6991656 + ... + 6991751.

Almost surely, 2^671203536 is an apocalyptic number.

It is an amenable number.

671203536 is an abundant number, since it is smaller than the sum of its proper divisors (1062739056).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

671203536 is a wasteful number, since it uses less digits than its factorization.

671203536 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13983418 (or 13983412 counting only the distinct ones).

The product of its (nonzero) digits is 22680, while the sum is 33.

The square root of 671203536 is about 25907.5961061616. The cubic root of 671203536 is about 875.5576465986.

The spelling of 671203536 in words is "six hundred seventy-one million, two hundred three thousand, five hundred thirty-six".