2906213 has 2 divisors, whose sum is σ = 2906214. Its totient is φ = 2906212.

The previous prime is 2906207. The next prime is 2906231. The reversal of 2906213 is 3126092.

Together with next prime (2906231) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2896804 + 9409 = 1702^2 + 97^2 .

It is a cyclic number.

It is not a de Polignac number, because 2906213 - 2¹⁴ = 2889829 is a prime.

It is a Sophie Germain prime.

It is an Ulam number.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2906263) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1453106 + 1453107.

It is an arithmetic number, because the mean of its divisors is an integer number (1453107).

2^2906213 is an apocalyptic number.

It is an amenable number.

2906213 is a deficient number, since it is larger than the sum of its proper divisors (1).

2906213 is an equidigital number, since it uses as much as digits as its factorization.

2906213 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 648, while the sum is 23.

The square root of 2906213 is about 1704.7618602022. The cubic root of 2906213 is about 142.7060812237.

The spelling of 2906213 in words is "two million, nine hundred six thousand, two hundred thirteen".