30472943 has 2 divisors, whose sum is σ = 30472944. Its totient is φ = 30472942.

The previous prime is 30472919. The next prime is 30472951. The reversal of 30472943 is 34927403.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 30472943 - 2¹² = 30468847 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30472643) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15236471 + 15236472.

It is an arithmetic number, because the mean of its divisors is an integer number (15236472).

Almost surely, 2^30472943 is an apocalyptic number.

30472943 is a deficient number, since it is larger than the sum of its proper divisors (1).

30472943 is an equidigital number, since it uses as much as digits as its factorization.

30472943 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 32.

The square root of 30472943 is about 5520.2303393971. The cubic root of 30472943 is about 312.3475711015.

The spelling of 30472943 in words is "thirty million, four hundred seventy-two thousand, nine hundred forty-three".