30209929 has 2 divisors, whose sum is σ = 30209930. Its totient is φ = 30209928.

The previous prime is 30209923. The next prime is 30209939. The reversal of 30209929 is 92990203.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 25522704 + 4687225 = 5052^2 + 2165^2 .

It is a cyclic number.

It is not a de Polignac number, because 30209929 - 2⁷ = 30209801 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 30209894 and 30209903.

It is not a weakly prime, because it can be changed into another prime (30209923) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15104964 + 15104965.

It is an arithmetic number, because the mean of its divisors is an integer number (15104965).

Almost surely, 2^30209929 is an apocalyptic number.

It is an amenable number.

30209929 is a deficient number, since it is larger than the sum of its proper divisors (1).

30209929 is an equidigital number, since it uses as much as digits as its factorization.

30209929 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8748, while the sum is 34.

The square root of 30209929 is about 5496.3559746436. The cubic root of 30209929 is about 311.4463423573.

The spelling of 30209929 in words is "thirty million, two hundred nine thousand, nine hundred twenty-nine".