30530807 has 4 divisors (see below), whose sum is σ = 30561960. Its totient is φ = 30499656.

The previous prime is 30530771. The next prime is 30530813. The reversal of 30530807 is 70803503.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 70803503 = 73 ⋅969911.

It is a cyclic number.

It is not a de Polignac number, because 30530807 - 2⁸ = 30530551 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30530107) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14057 + ... + 16082.

It is an arithmetic number, because the mean of its divisors is an integer number (7640490).

Almost surely, 2^30530807 is an apocalyptic number.

30530807 is a deficient number, since it is larger than the sum of its proper divisors (31153).

30530807 is a wasteful number, since it uses less digits than its factorization.

30530807 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31152.

The product of its (nonzero) digits is 2520, while the sum is 26.

The square root of 30530807 is about 5525.4689393752. The cubic root of 30530807 is about 312.5451480370.

The spelling of 30530807 in words is "thirty million, five hundred thirty thousand, eight hundred seven".