30747029 has 2 divisors, whose sum is σ = 30747030. Its totient is φ = 30747028.

The previous prime is 30747019. The next prime is 30747061. The reversal of 30747029 is 92074703.

It is a happy number.

It is an a-pointer prime, because the next prime (30747061) can be obtained adding 30747029 to its sum of digits (32).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 30747025 + 4 = 5545^2 + 2^2 .

It is a cyclic number.

It is not a de Polignac number, because 30747029 - 2¹⁶ = 30681493 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 30746986 and 30747004.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30747019) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15373514 + 15373515.

It is an arithmetic number, because the mean of its divisors is an integer number (15373515).

Almost surely, 2^30747029 is an apocalyptic number.

It is an amenable number.

30747029 is a deficient number, since it is larger than the sum of its proper divisors (1).

30747029 is an equidigital number, since it uses as much as digits as its factorization.

30747029 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10584, while the sum is 32.

The square root of 30747029 is about 5545.0003606853. Note that the first 3 decimals coincide. The cubic root of 30747029 is about 313.2812376293.

The spelling of 30747029 in words is "thirty million, seven hundred forty-seven thousand, twenty-nine".