30339971 has 2 divisors, whose sum is σ = 30339972. Its totient is φ = 30339970.

The previous prime is 30339961. The next prime is 30339973. The reversal of 30339971 is 17993303.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 30339971 - 2²² = 26145667 is a prime.

It is a Sophie Germain prime.

Together with 30339973, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (30339973) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15169985 + 15169986.

It is an arithmetic number, because the mean of its divisors is an integer number (15169986).

Almost surely, 2^30339971 is an apocalyptic number.

30339971 is a deficient number, since it is larger than the sum of its proper divisors (1).

30339971 is an equidigital number, since it uses as much as digits as its factorization.

30339971 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 15309, while the sum is 35.

The square root of 30339971 is about 5508.1731091170. The cubic root of 30339971 is about 311.8925878063.

The spelling of 30339971 in words is "thirty million, three hundred thirty-nine thousand, nine hundred seventy-one".