671731704 has 96 divisors (see below), whose sum is σ = 2156219520. Its totient is φ = 191919456.

The previous prime is 671731703. The next prime is 671731717. The reversal of 671731704 is 407137176.

671731704 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (671731703) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 11074 + ... + 38289.

It is an arithmetic number, because the mean of its divisors is an integer number (22460620).

Almost surely, 2^671731704 is an apocalyptic number.

It is an amenable number.

671731704 is an abundant number, since it is smaller than the sum of its proper divisors (1484487816).

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

671731704 is a wasteful number, since it uses less digits than its factorization.

671731704 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49391 (or 49375 counting only the distinct ones).

The product of its (nonzero) digits is 24696, while the sum is 36.

The square root of 671731704 is about 25917.7874055638. The cubic root of 671731704 is about 875.7872442597.

The spelling of 671731704 in words is "six hundred seventy-one million, seven hundred thirty-one thousand, seven hundred four".