676543213 has 2 divisors, whose sum is σ = 676543214. Its totient is φ = 676543212.

The previous prime is 676543207. The next prime is 676543223. The reversal of 676543213 is 312345676.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 619661449 + 56881764 = 24893^2 + 7542^2 .

It is a cyclic number.

It is not a de Polignac number, because 676543213 - 2⁵ = 676543181 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (676543223) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 338271606 + 338271607.

It is an arithmetic number, because the mean of its divisors is an integer number (338271607).

Almost surely, 2^676543213 is an apocalyptic number.

It is an amenable number.

676543213 is a deficient number, since it is larger than the sum of its proper divisors (1).

676543213 is an equidigital number, since it uses as much as digits as its factorization.

676543213 is an evil number, because the sum of its binary digits is even.

The product of its digits is 90720, while the sum is 37.

The square root of 676543213 is about 26010.4443060860. Note that the first 3 decimals coincide. The cubic root of 676543213 is about 877.8733137229.

Adding to 676543213 its reverse (312345676), we get a palindrome (988888889).

The spelling of 676543213 in words is "six hundred seventy-six million, five hundred forty-three thousand, two hundred thirteen".