930742321 has 4 divisors (see below), whose sum is σ = 930836772. Its totient is φ = 930647872.

The previous prime is 930742313. The next prime is 930742343. The reversal of 930742321 is 123247039.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 123247039 = 10733 ⋅11483.

It can be written as a sum of positive squares in 2 ways, for example, as 667653921 + 263088400 = 25839^2 + 16220^2 .

It is a cyclic number.

It is not a de Polignac number, because 930742321 - 2³ = 930742313 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (930742301) 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, 30460 + ... + 52813.

It is an arithmetic number, because the mean of its divisors is an integer number (232709193).

Almost surely, 2^930742321 is an apocalyptic number.

It is an amenable number.

930742321 is a deficient number, since it is larger than the sum of its proper divisors (94451).

930742321 is a wasteful number, since it uses less digits than its factorization.

930742321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 94450.

The product of its (nonzero) digits is 9072, while the sum is 31.

The square root of 930742321 is about 30508.0697685055. The cubic root of 930742321 is about 976.3596445266.

The spelling of 930742321 in words is "nine hundred thirty million, seven hundred forty-two thousand, three hundred twenty-one".