30806297 has 2 divisors, whose sum is σ = 30806298. Its totient is φ = 30806296.

The previous prime is 30806267. The next prime is 30806309. The reversal of 30806297 is 79260803.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 29767936 + 1038361 = 5456^2 + 1019^2 .

It is a cyclic number.

It is not a de Polignac number, because 30806297 - 2⁶ = 30806233 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (30806267) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15403148 + 15403149.

It is an arithmetic number, because the mean of its divisors is an integer number (15403149).

Almost surely, 2^30806297 is an apocalyptic number.

It is an amenable number.

30806297 is a deficient number, since it is larger than the sum of its proper divisors (1).

30806297 is an equidigital number, since it uses as much as digits as its factorization.

30806297 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 18144, while the sum is 35.

The square root of 30806297 is about 5550.3420615310. The cubic root of 30806297 is about 313.4824021589.

The spelling of 30806297 in words is "thirty million, eight hundred six thousand, two hundred ninety-seven".