671406488 has 16 divisors (see below), whose sum is σ = 1289592360. Its totient is φ = 327515200.

The previous prime is 671406487. The next prime is 671406493. The reversal of 671406488 is 884604176.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (671406481) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1023158 + ... + 1023813.

Almost surely, 2^671406488 is an apocalyptic number.

It is an amenable number.

671406488 is a deficient number, since it is larger than the sum of its proper divisors (618185872).

671406488 is a wasteful number, since it uses less digits than its factorization.

671406488 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2047018 (or 2047014 counting only the distinct ones).

The product of its (nonzero) digits is 258048, while the sum is 44.

The square root of 671406488 is about 25911.5126536449. The cubic root of 671406488 is about 875.6458852420.

The spelling of 671406488 in words is "six hundred seventy-one million, four hundred six thousand, four hundred eighty-eight".