671953008 has 40 divisors (see below), whose sum is σ = 1740924288. Its totient is φ = 223333312.

The previous prime is 671952989. The next prime is 671953019. The reversal of 671953008 is 800359176.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3516 + ... + 36827.

Almost surely, 2^671953008 is an apocalyptic number.

It is an amenable number.

671953008 is an abundant number, since it is smaller than the sum of its proper divisors (1068971280).

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

671953008 is a wasteful number, since it uses less digits than its factorization.

671953008 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40701 (or 40695 counting only the distinct ones).

The product of its (nonzero) digits is 45360, while the sum is 39.

The square root of 671953008 is about 25922.0563999078. The cubic root of 671953008 is about 875.8834106005.

The spelling of 671953008 in words is "six hundred seventy-one million, nine hundred fifty-three thousand, eight".