30466621 has 4 divisors (see below), whose sum is σ = 30478144. Its totient is φ = 30455100.

The previous prime is 30466603. The next prime is 30466627. The reversal of 30466621 is 12666403.

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 a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 12666403 = 269 ⋅47087.

It is a cyclic number.

It is not a de Polignac number, because 30466621 - 2⁵ = 30466589 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 30466621.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30466627) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 406 + ... + 7816.

It is an arithmetic number, because the mean of its divisors is an integer number (7619536).

Almost surely, 2^30466621 is an apocalyptic number.

It is an amenable number.

30466621 is a deficient number, since it is larger than the sum of its proper divisors (11523).

30466621 is an equidigital number, since it uses as much as digits as its factorization.

30466621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11522.

The product of its (nonzero) digits is 5184, while the sum is 28.

The square root of 30466621 is about 5519.6576886615. The cubic root of 30466621 is about 312.3259694474.

The spelling of 30466621 in words is "thirty million, four hundred sixty-six thousand, six hundred twenty-one".