30384869 has 2 divisors, whose sum is σ = 30384870. Its totient is φ = 30384868.

The previous prime is 30384859. The next prime is 30384883. The reversal of 30384869 is 96848303.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 28494244 + 1890625 = 5338^2 + 1375^2 .

It is a cyclic number.

It is not a de Polignac number, because 30384869 - 2²⁴ = 13607653 is a prime.

It is a super-2 number, since 2×30384869² = 1846480528294322, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Chen 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 (30384829) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15192434 + 15192435.

It is an arithmetic number, because the mean of its divisors is an integer number (15192435).

Almost surely, 2^30384869 is an apocalyptic number.

It is an amenable number.

30384869 is a deficient number, since it is larger than the sum of its proper divisors (1).

30384869 is an equidigital number, since it uses as much as digits as its factorization.

30384869 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 124416, while the sum is 41.

The square root of 30384869 is about 5512.2471824112. The cubic root of 30384869 is about 312.0463613169.

Adding to 30384869 its sum of digits (41), we get a triangular number (30384910 = T₇₇₉₅).

The spelling of 30384869 in words is "thirty million, three hundred eighty-four thousand, eight hundred sixty-nine".