30086939 has 2 divisors, whose sum is σ = 30086940. Its totient is φ = 30086938.

The previous prime is 30086929. The next prime is 30086983. The reversal of 30086939 is 93968003.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-30086939 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (30086929) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15043469 + 15043470.

It is an arithmetic number, because the mean of its divisors is an integer number (15043470).

Almost surely, 2^30086939 is an apocalyptic number.

30086939 is a deficient number, since it is larger than the sum of its proper divisors (1).

30086939 is an equidigital number, since it uses as much as digits as its factorization.

30086939 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 34992, while the sum is 38.

The square root of 30086939 is about 5485.1562420773. The cubic root of 30086939 is about 311.0231163223.

The spelling of 30086939 in words is "thirty million, eighty-six thousand, nine hundred thirty-nine".