30790943 has 2 divisors, whose sum is σ = 30790944. Its totient is φ = 30790942.

The previous prime is 30790901. The next prime is 30790957. The reversal of 30790943 is 34909703.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-30790943 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30790973) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15395471 + 15395472.

It is an arithmetic number, because the mean of its divisors is an integer number (15395472).

Almost surely, 2^30790943 is an apocalyptic number.

30790943 is a deficient number, since it is larger than the sum of its proper divisors (1).

30790943 is an equidigital number, since it uses as much as digits as its factorization.

30790943 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 20412, while the sum is 35.

The square root of 30790943 is about 5548.9587311495. The cubic root of 30790943 is about 313.4303131475.

The spelling of 30790943 in words is "thirty million, seven hundred ninety thousand, nine hundred forty-three".