30383973 has 12 divisors (see below), whose sum is σ = 44087680. Its totient is φ = 20163816.

The previous prime is 30383971. The next prime is 30384019. The reversal of 30383973 is 37938303.

It is a happy number.

It is not a de Polignac number, because 30383973 - 2¹ = 30383971 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 (30383971) 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 11 ways as a sum of consecutive naturals, for example, 5563 + ... + 9576.

Almost surely, 2^30383973 is an apocalyptic number.

It is an amenable number.

30383973 is a deficient number, since it is larger than the sum of its proper divisors (13703707).

30383973 is a wasteful number, since it uses less digits than its factorization.

30383973 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15368 (or 15365 counting only the distinct ones).

The product of its (nonzero) digits is 40824, while the sum is 36.

The square root of 30383973 is about 5512.1659082433. The cubic root of 30383973 is about 312.0432940414.

The spelling of 30383973 in words is "thirty million, three hundred eighty-three thousand, nine hundred seventy-three".