7040213 has 2 divisors, whose sum is σ = 7040214. Its totient is φ = 7040212.

The previous prime is 7040197. The next prime is 7040221. The reversal of 7040213 is 3120407.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5654884 + 1385329 = 2378^2 + 1177^2 .

It is an emirp because it is prime and its reverse (3120407) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 7040213 - 2⁴ = 7040197 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 7040191 and 7040200.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7040263) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3520106 + 3520107.

It is an arithmetic number, because the mean of its divisors is an integer number (3520107).

Almost surely, 2^7040213 is an apocalyptic number.

It is an amenable number.

7040213 is a deficient number, since it is larger than the sum of its proper divisors (1).

7040213 is an equidigital number, since it uses as much as digits as its factorization.

7040213 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 168, while the sum is 17.

The square root of 7040213 is about 2653.3399706785. The cubic root of 7040213 is about 191.6587271653.

The spelling of 7040213 in words is "seven million, forty thousand, two hundred thirteen".