30304973 has 4 divisors (see below), whose sum is σ = 30402108. Its totient is φ = 30207840.

The previous prime is 30304957. The next prime is 30304979. The reversal of 30304973 is 37940303.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 15389929 + 14915044 = 3923^2 + 3862^2 .

It is a cyclic number.

It is not a de Polignac number, because 30304973 - 2⁴ = 30304957 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 (30304979) 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, 48098 + ... + 48723.

It is an arithmetic number, because the mean of its divisors is an integer number (7600527).

Almost surely, 2^30304973 is an apocalyptic number.

It is an amenable number.

30304973 is a deficient number, since it is larger than the sum of its proper divisors (97135).

30304973 is an equidigital number, since it uses as much as digits as its factorization.

30304973 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 97134.

The product of its (nonzero) digits is 6804, while the sum is 29.

The square root of 30304973 is about 5504.9952770189. The cubic root of 30304973 is about 311.7726160740.

The spelling of 30304973 in words is "thirty million, three hundred four thousand, nine hundred seventy-three".