671689466 has 8 divisors (see below), whose sum is σ = 1151467680. Its totient is φ = 287866908.

The previous prime is 671689457. The next prime is 671689477. The reversal of 671689466 is 664986176.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23988896 + ... + 23988923.

It is an arithmetic number, because the mean of its divisors is an integer number (143933460).

Almost surely, 2^671689466 is an apocalyptic number.

671689466 is a deficient number, since it is larger than the sum of its proper divisors (479778214).

671689466 is a wasteful number, since it uses less digits than its factorization.

671689466 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47977828.

The product of its digits is 2612736, while the sum is 53.

The square root of 671689466 is about 25916.9725469623. The cubic root of 671689466 is about 875.7688875871.

The spelling of 671689466 in words is "six hundred seventy-one million, six hundred eighty-nine thousand, four hundred sixty-six".