4206656213 has 4 divisors (see below), whose sum is σ = 4207475520. Its totient is φ = 4205836908.

The previous prime is 4206656173. The next prime is 4206656243. The reversal of 4206656213 is 3126566024.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 4206656213 - 2¹⁸ = 4206394069 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 (4206656243) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 401903 + ... + 412236.

It is an arithmetic number, because the mean of its divisors is an integer number (1051868880).

Almost surely, 2^4206656213 is an apocalyptic number.

It is an amenable number.

4206656213 is a deficient number, since it is larger than the sum of its proper divisors (819307).

4206656213 is an equidigital number, since it uses as much as digits as its factorization.

4206656213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 819306.

The product of its (nonzero) digits is 51840, while the sum is 35.

The square root of 4206656213 is about 64858.7404518466. The cubic root of 4206656213 is about 1614.2805235202.

The spelling of 4206656213 in words is "four billion, two hundred six million, six hundred fifty-six thousand, two hundred thirteen".