671408972 has 12 divisors (see below), whose sum is σ = 1265347776. Its totient is φ = 309881040.

The previous prime is 671408951. The next prime is 671409001. The reversal of 671408972 is 279804176.

It is an unprimeable number.

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, 6455804 + ... + 6455907.

It is an arithmetic number, because the mean of its divisors is an integer number (105445648).

Almost surely, 2^671408972 is an apocalyptic number.

It is an amenable number.

671408972 is a deficient number, since it is larger than the sum of its proper divisors (593938804).

671408972 is a wasteful number, since it uses less digits than its factorization.

671408972 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12911728 (or 12911726 counting only the distinct ones).

The product of its (nonzero) digits is 169344, while the sum is 44.

The square root of 671408972 is about 25911.5605859624. The cubic root of 671408972 is about 875.6469651152.

The spelling of 671408972 in words is "six hundred seventy-one million, four hundred eight thousand, nine hundred seventy-two".