1684564213 has 8 divisors (see below), whose sum is σ = 1703757440. Its totient is φ = 1665472320.

The previous prime is 1684564201. The next prime is 1684564291. The reversal of 1684564213 is 3124654861.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 1684564213 - 2²⁹ = 1147693301 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1684564613) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8356 + ... + 58642.

It is an arithmetic number, because the mean of its divisors is an integer number (212969680).

Almost surely, 2^1684564213 is an apocalyptic number.

It is an amenable number.

1684564213 is a deficient number, since it is larger than the sum of its proper divisors (19193227).

1684564213 is a wasteful number, since it uses less digits than its factorization.

1684564213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50667.

The product of its digits is 138240, while the sum is 40.

The square root of 1684564213 is about 41043.4429964154. The cubic root of 1684564213 is about 1189.8599776401.

The spelling of 1684564213 in words is "one billion, six hundred eighty-four million, five hundred sixty-four thousand, two hundred thirteen".