7382920321 has 8 divisors (see below), whose sum is σ = 8521164864. Its totient is φ = 6265561200.

The previous prime is 7382920313. The next prime is 7382920333. The reversal of 7382920321 is 1230292837.

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

It is a cyclic number.

It is not a de Polignac number, because 7382920321 - 2³ = 7382920313 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7382920381) 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, 5220595 + ... + 5222008.

It is an arithmetic number, because the mean of its divisors is an integer number (1065145608).

Almost surely, 2^7382920321 is an apocalyptic number.

It is an amenable number.

7382920321 is a deficient number, since it is larger than the sum of its proper divisors (1138244543).

7382920321 is a wasteful number, since it uses less digits than its factorization.

7382920321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10442711.

The product of its (nonzero) digits is 36288, while the sum is 37.

The square root of 7382920321 is about 85923.9217040284. The cubic root of 7382920321 is about 1947.1947672575.

The spelling of 7382920321 in words is "seven billion, three hundred eighty-two million, nine hundred twenty thousand, three hundred twenty-one".