30000017 has 4 divisors (see below), whose sum is σ = 30080820. Its totient is φ = 29919216.

The previous prime is 30000001. The next prime is 30000023. The reversal of 30000017 is 71000003.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 71000003 = 37 ⋅1918919.

It can be written as a sum of positive squares in 2 ways, for example, as 8386816 + 21613201 = 2896^2 + 4649^2 .

It is a cyclic number.

It is not a de Polignac number, because 30000017 - 2⁴ = 30000001 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 29999962 and 30000007.

It is not an unprimeable number, because it can be changed into a prime (30000037) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 39842 + ... + 40587.

It is an arithmetic number, because the mean of its divisors is an integer number (7520205).

Almost surely, 2^30000017 is an apocalyptic number.

It is an amenable number.

30000017 is a deficient number, since it is larger than the sum of its proper divisors (80803).

30000017 is an equidigital number, since it uses as much as digits as its factorization.

30000017 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80802.

The product of its (nonzero) digits is 21, while the sum is 11.

The square root of 30000017 is about 5477.2271269320. The cubic root of 30000017 is about 310.7233092875.

The spelling of 30000017 in words is "thirty million, seventeen", and thus it is an aban number and an uban number.