30072929 has 2 divisors, whose sum is σ = 30072930. Its totient is φ = 30072928.

The previous prime is 30072923. The next prime is 30072943. The reversal of 30072929 is 92927003.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 22344529 + 7728400 = 4727^2 + 2780^2 .

It is a cyclic number.

It is not a de Polignac number, because 30072929 - 2¹² = 30068833 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 30072895 and 30072904.

It is not a weakly prime, because it can be changed into another prime (30072923) 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, 15036464 + 15036465.

It is an arithmetic number, because the mean of its divisors is an integer number (15036465).

Almost surely, 2^30072929 is an apocalyptic number.

It is an amenable number.

30072929 is a deficient number, since it is larger than the sum of its proper divisors (1).

30072929 is an equidigital number, since it uses as much as digits as its factorization.

30072929 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6804, while the sum is 32.

The square root of 30072929 is about 5483.8790103357. The cubic root of 30072929 is about 310.9748327977.

The spelling of 30072929 in words is "thirty million, seventy-two thousand, nine hundred twenty-nine".