30724829 has 2 divisors, whose sum is σ = 30724830. Its totient is φ = 30724828.

The previous prime is 30724823. The next prime is 30724861. The reversal of 30724829 is 92842703.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 27019204 + 3705625 = 5198^2 + 1925^2 .

It is a cyclic number.

It is not a de Polignac number, because 30724829 - 2¹² = 30720733 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30724823) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15362414 + 15362415.

It is an arithmetic number, because the mean of its divisors is an integer number (15362415).

Almost surely, 2^30724829 is an apocalyptic number.

It is an amenable number.

30724829 is a deficient number, since it is larger than the sum of its proper divisors (1).

30724829 is an equidigital number, since it uses as much as digits as its factorization.

30724829 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 24192, while the sum is 35.

The square root of 30724829 is about 5542.9981959225. The cubic root of 30724829 is about 313.2058209336.

The spelling of 30724829 in words is "thirty million, seven hundred twenty-four thousand, eight hundred twenty-nine".