3620660213 has 2 divisors, whose sum is σ = 3620660214. Its totient is φ = 3620660212.

The previous prime is 3620660201. The next prime is 3620660287. The reversal of 3620660213 is 3120660263.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3464735044 + 155925169 = 58862^2 + 12487^2 .

It is a cyclic number.

It is not a de Polignac number, because 3620660213 - 2⁶ = 3620660149 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3620660413) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1810330106 + 1810330107.

It is an arithmetic number, because the mean of its divisors is an integer number (1810330107).

Almost surely, 2^3620660213 is an apocalyptic number.

It is an amenable number.

3620660213 is a deficient number, since it is larger than the sum of its proper divisors (1).

3620660213 is an equidigital number, since it uses as much as digits as its factorization.

3620660213 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7776, while the sum is 29.

The square root of 3620660213 is about 60171.9221315058. The cubic root of 3620660213 is about 1535.5451473293.

The spelling of 3620660213 in words is "three billion, six hundred twenty million, six hundred sixty thousand, two hundred thirteen".