30969443 has 2 divisors, whose sum is σ = 30969444. Its totient is φ = 30969442.

The previous prime is 30969439. The next prime is 30969451. The reversal of 30969443 is 34496903.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 30969443 - 2² = 30969439 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 30969397 and 30969406.

It is not a weakly prime, because it can be changed into another prime (30969413) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15484721 + 15484722.

It is an arithmetic number, because the mean of its divisors is an integer number (15484722).

Almost surely, 2^30969443 is an apocalyptic number.

30969443 is a deficient number, since it is larger than the sum of its proper divisors (1).

30969443 is an equidigital number, since it uses as much as digits as its factorization.

30969443 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 69984, while the sum is 38.

The square root of 30969443 is about 5565.0195866681. The cubic root of 30969443 is about 314.0348149965.

The spelling of 30969443 in words is "thirty million, nine hundred sixty-nine thousand, four hundred forty-three".