213289673 has 2 divisors, whose sum is σ = 213289674. Its totient is φ = 213289672.

The previous prime is 213289663. The next prime is 213289717. The reversal of 213289673 is 376982312.

213289673 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 188018944 + 25270729 = 13712^2 + 5027^2 .

It is a cyclic number.

It is not a de Polignac number, because 213289673 - 2¹⁴ = 213273289 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 213289673.

It is not a weakly prime, because it can be changed into another prime (213289613) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106644836 + 106644837.

It is an arithmetic number, because the mean of its divisors is an integer number (106644837).

Almost surely, 2^213289673 is an apocalyptic number.

It is an amenable number.

213289673 is a deficient number, since it is larger than the sum of its proper divisors (1).

213289673 is an equidigital number, since it uses as much as digits as its factorization.

213289673 is an evil number, because the sum of its binary digits is even.

The product of its digits is 108864, while the sum is 41.

The square root of 213289673 is about 14604.4401809861. The cubic root of 213289673 is about 597.4798676713.

The spelling of 213289673 in words is "two hundred thirteen million, two hundred eighty-nine thousand, six hundred seventy-three".