30009973 has 8 divisors (see below), whose sum is σ = 34568192. Its totient is φ = 25519536.

The previous prime is 30009919. The next prime is 30009979. The reversal of 30009973 is 37990003.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 30009973 - 2¹³ = 30001781 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 (30009979) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15990 + ... + 17767.

It is an arithmetic number, because the mean of its divisors is an integer number (4321024).

Almost surely, 2^30009973 is an apocalyptic number.

It is an amenable number.

30009973 is a deficient number, since it is larger than the sum of its proper divisors (4558219).

30009973 is a wasteful number, since it uses less digits than its factorization.

30009973 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33891.

The product of its (nonzero) digits is 5103, while the sum is 31.

The square root of 30009973 is about 5478.1359055796. The cubic root of 30009973 is about 310.7576783693.

Adding to 30009973 its reverse (37990003), we get a palindrome (67999976).

The spelling of 30009973 in words is "thirty million, nine thousand, nine hundred seventy-three".