671824413 has 12 divisors (see below), whose sum is σ = 1045060380. Its totient is φ = 413430336.

The previous prime is 671824409. The next prime is 671824423. The reversal of 671824413 is 314428176.

671824413 is a `hidden beast` number, since 67 + 182 + 4 + 413 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 153214884 + 518609529 = 12378^2 + 22773^2 .

It is not a de Polignac number, because 671824413 - 2² = 671824409 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (671824403) 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 11 ways as a sum of consecutive naturals, for example, 2870928 + ... + 2871161.

It is an arithmetic number, because the mean of its divisors is an integer number (87088365).

Almost surely, 2^671824413 is an apocalyptic number.

It is an amenable number.

671824413 is a deficient number, since it is larger than the sum of its proper divisors (373235967).

671824413 is a wasteful number, since it uses less digits than its factorization.

671824413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5742108 (or 5742105 counting only the distinct ones).

The product of its digits is 32256, while the sum is 36.

The square root of 671824413 is about 25919.5758645854. The cubic root of 671824413 is about 875.8275329763.

The spelling of 671824413 in words is "six hundred seventy-one million, eight hundred twenty-four thousand, four hundred thirteen".