67270213 has 2 divisors, whose sum is σ = 67270214. Its totient is φ = 67270212.

The previous prime is 67270187. The next prime is 67270219. The reversal of 67270213 is 31207276.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 63728289 + 3541924 = 7983^2 + 1882^2 .

It is a cyclic number.

It is not a de Polignac number, because 67270213 - 2¹³ = 67262021 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (67270219) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33635106 + 33635107.

It is an arithmetic number, because the mean of its divisors is an integer number (33635107).

Almost surely, 2^67270213 is an apocalyptic number.

It is an amenable number.

67270213 is a deficient number, since it is larger than the sum of its proper divisors (1).

67270213 is an equidigital number, since it uses as much as digits as its factorization.

67270213 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3528, while the sum is 28.

The square root of 67270213 is about 8201.8420491985. The cubic root of 67270213 is about 406.7000891489.

Adding to 67270213 its reverse (31207276), we get a palindrome (98477489).

The spelling of 67270213 in words is "sixty-seven million, two hundred seventy thousand, two hundred thirteen".