30227973 has 4 divisors (see below), whose sum is σ = 40303968. Its totient is φ = 20151980.

The previous prime is 30227971. The next prime is 30227999. The reversal of 30227973 is 37972203.

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.

It is a cyclic number.

It is not a de Polignac number, because 30227973 - 2¹ = 30227971 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30227971) 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, 5037993 + ... + 5037998.

It is an arithmetic number, because the mean of its divisors is an integer number (10075992).

Almost surely, 2^30227973 is an apocalyptic number.

It is an amenable number.

30227973 is a deficient number, since it is larger than the sum of its proper divisors (10075995).

30227973 is a wasteful number, since it uses less digits than its factorization.

30227973 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10075994.

The product of its (nonzero) digits is 15876, while the sum is 33.

The square root of 30227973 is about 5497.9971807923. The cubic root of 30227973 is about 311.5083376404.

The spelling of 30227973 in words is "thirty million, two hundred twenty-seven thousand, nine hundred seventy-three".