671351448 has 16 divisors (see below), whose sum is σ = 1678378680. Its totient is φ = 223783808.

The previous prime is 671351411. The next prime is 671351449. The reversal of 671351448 is 844153176.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (671351449) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13986465 + ... + 13986512.

Almost surely, 2^671351448 is an apocalyptic number.

It is an amenable number.

671351448 is an abundant number, since it is smaller than the sum of its proper divisors (1007027232).

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

671351448 is a wasteful number, since it uses less digits than its factorization.

671351448 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27972986 (or 27972982 counting only the distinct ones).

The product of its digits is 80640, while the sum is 39.

The square root of 671351448 is about 25910.4505557121. The cubic root of 671351448 is about 875.6219569326.

The spelling of 671351448 in words is "six hundred seventy-one million, three hundred fifty-one thousand, four hundred forty-eight".