320382851 has 4 divisors (see below), whose sum is σ = 322153104. Its totient is φ = 318612600.

The previous prime is 320382793. The next prime is 320382859. The reversal of 320382851 is 158283023.

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

It is a cyclic number.

It is not a de Polignac number, because 320382851 - 2⁶ = 320382787 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (320382859) 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, 884855 + ... + 885216.

It is an arithmetic number, because the mean of its divisors is an integer number (80538276).

Almost surely, 2^320382851 is an apocalyptic number.

320382851 is a deficient number, since it is larger than the sum of its proper divisors (1770253).

320382851 is a wasteful number, since it uses less digits than its factorization.

320382851 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1770252.

The product of its (nonzero) digits is 11520, while the sum is 32.

The square root of 320382851 is about 17899.2416319798. The cubic root of 320382851 is about 684.2630474589.

The spelling of 320382851 in words is "three hundred twenty million, three hundred eighty-two thousand, eight hundred fifty-one".