671819343 has 16 divisors (see below), whose sum is σ = 965195616. Its totient is φ = 413199360.

The previous prime is 671819341. The next prime is 671819411. The reversal of 671819343 is 343918176.

It is not a de Polignac number, because 671819343 - 2¹ = 671819341 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 671819295 and 671819304.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (671819341) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 91671 + ... + 98727.

It is an arithmetic number, because the mean of its divisors is an integer number (60324726).

Almost surely, 2^671819343 is an apocalyptic number.

671819343 is a deficient number, since it is larger than the sum of its proper divisors (293376273).

671819343 is a wasteful number, since it uses less digits than its factorization.

671819343 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9514.

The product of its digits is 108864, while the sum is 42.

The square root of 671819343 is about 25919.4780618746. The cubic root of 671819343 is about 875.8253297931.

The spelling of 671819343 in words is "six hundred seventy-one million, eight hundred nineteen thousand, three hundred forty-three".