3506213 has 2 divisors, whose sum is σ = 3506214. Its totient is φ = 3506212.

The previous prime is 3506207. The next prime is 3506249. The reversal of 3506213 is 3126053.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2211169 + 1295044 = 1487^2 + 1138^2 .

It is a cyclic number.

It is not a de Polignac number, because 3506213 - 2⁶ = 3506149 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3596213) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1753106 + 1753107.

It is an arithmetic number, because the mean of its divisors is an integer number (1753107).

Almost surely, 2^3506213 is an apocalyptic number.

It is an amenable number.

3506213 is a deficient number, since it is larger than the sum of its proper divisors (1).

3506213 is an equidigital number, since it uses as much as digits as its factorization.

3506213 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 540, while the sum is 20.

The square root of 3506213 is about 1872.4884512327. The cubic root of 3506213 is about 151.9192351405.

The spelling of 3506213 in words is "three million, five hundred six thousand, two hundred thirteen".