30855007 has 2 divisors, whose sum is σ = 30855008. Its totient is φ = 30855006.

The previous prime is 30854977. The next prime is 30855023. The reversal of 30855007 is 70055803.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-30855007 is a 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 (30855047) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15427503 + 15427504.

It is an arithmetic number, because the mean of its divisors is an integer number (15427504).

Almost surely, 2^30855007 is an apocalyptic number.

30855007 is a deficient number, since it is larger than the sum of its proper divisors (1).

30855007 is an equidigital number, since it uses as much as digits as its factorization.

30855007 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4200, while the sum is 28.

The square root of 30855007 is about 5554.7283461930. The cubic root of 30855007 is about 313.6475381684.

The spelling of 30855007 in words is "thirty million, eight hundred fifty-five thousand, seven".