30939299 has 2 divisors, whose sum is σ = 30939300. Its totient is φ = 30939298.

The previous prime is 30939253. The next prime is 30939313. The reversal of 30939299 is 99293903.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 30939299 - 2⁸ = 30939043 is a prime.

It is a super-2 number, since 2×30939299² = 1914480445222802, which contains 22 as substring.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (30933299) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15469649 + 15469650.

It is an arithmetic number, because the mean of its divisors is an integer number (15469650).

Almost surely, 2^30939299 is an apocalyptic number.

30939299 is a deficient number, since it is larger than the sum of its proper divisors (1).

30939299 is an equidigital number, since it uses as much as digits as its factorization.

30939299 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 118098, while the sum is 44.

The square root of 30939299 is about 5562.3105810445. The cubic root of 30939299 is about 313.9328936882.

The spelling of 30939299 in words is "thirty million, nine hundred thirty-nine thousand, two hundred ninety-nine".