671031544 has 16 divisors (see below), whose sum is σ = 1279510200. Its totient is φ = 329828832.

The previous prime is 671031541. The next prime is 671031553. The reversal of 671031544 is 445130176.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (671031541) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 710367 + ... + 711310.

Almost surely, 2^671031544 is an apocalyptic number.

It is an amenable number.

671031544 is a deficient number, since it is larger than the sum of its proper divisors (608478656).

671031544 is a wasteful number, since it uses less digits than its factorization.

671031544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1421742 (or 1421738 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 31.

The square root of 671031544 is about 25904.2765581284. The cubic root of 671031544 is about 875.4828546927.

The spelling of 671031544 in words is "six hundred seventy-one million, thirty-one thousand, five hundred forty-four".