30930671 has 2 divisors, whose sum is σ = 30930672. Its totient is φ = 30930670.

The previous prime is 30930659. The next prime is 30930673. The reversal of 30930671 is 17603903.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-30930671 is a prime.

It is a Sophie Germain prime.

Together with 30930673, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30930673) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15465335 + 15465336.

It is an arithmetic number, because the mean of its divisors is an integer number (15465336).

Almost surely, 2^30930671 is an apocalyptic number.

30930671 is a deficient number, since it is larger than the sum of its proper divisors (1).

30930671 is an equidigital number, since it uses as much as digits as its factorization.

30930671 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3402, while the sum is 29.

The square root of 30930671 is about 5561.5349499936. The cubic root of 30930671 is about 313.9037089628.

The spelling of 30930671 in words is "thirty million, nine hundred thirty thousand, six hundred seventy-one".