930806213 has 2 divisors, whose sum is σ = 930806214. Its totient is φ = 930806212.

The previous prime is 930806183. The next prime is 930806273. The reversal of 930806213 is 312608039.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 858607204 + 72199009 = 29302^2 + 8497^2 .

It is a cyclic number.

It is not a de Polignac number, because 930806213 - 2⁸ = 930805957 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 930806213.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (930806273) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 465403106 + 465403107.

It is an arithmetic number, because the mean of its divisors is an integer number (465403107).

Almost surely, 2^930806213 is an apocalyptic number.

It is an amenable number.

930806213 is a deficient number, since it is larger than the sum of its proper divisors (1).

930806213 is an equidigital number, since it uses as much as digits as its factorization.

930806213 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 32.

The square root of 930806213 is about 30509.1168833187. The cubic root of 930806213 is about 976.3819851686.

The spelling of 930806213 in words is "nine hundred thirty million, eight hundred six thousand, two hundred thirteen".