30850421 has 4 divisors (see below), whose sum is σ = 35257632. Its totient is φ = 26443212.

The previous prime is 30850331. The next prime is 30850439. The reversal of 30850421 is 12405803.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 12405803 = 19 ⋅652937.

It is a cyclic number.

It is not a de Polignac number, because 30850421 - 2¹⁸ = 30588277 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 (30850481) 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, 2203595 + ... + 2203608.

It is an arithmetic number, because the mean of its divisors is an integer number (8814408).

Almost surely, 2^30850421 is an apocalyptic number.

It is an amenable number.

30850421 is a deficient number, since it is larger than the sum of its proper divisors (4407211).

30850421 is an equidigital number, since it uses as much as digits as its factorization.

30850421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4407210.

The product of its (nonzero) digits is 960, while the sum is 23.

The square root of 30850421 is about 5554.3155293879. The cubic root of 30850421 is about 313.6319981851.

The spelling of 30850421 in words is "thirty million, eight hundred fifty thousand, four hundred twenty-one".