320487854 has 4 divisors (see below), whose sum is σ = 480731784. Its totient is φ = 160243926.

The previous prime is 320487851. The next prime is 320487913. The reversal of 320487854 is 458784023.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (320487851) 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 as a sum of consecutive naturals, namely, 80121962 + ... + 80121965.

It is an arithmetic number, because the mean of its divisors is an integer number (120182946).

Almost surely, 2^320487854 is an apocalyptic number.

320487854 is a deficient number, since it is larger than the sum of its proper divisors (160243930).

320487854 is a wasteful number, since it uses less digits than its factorization.

320487854 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 160243929.

The product of its (nonzero) digits is 215040, while the sum is 41.

The square root of 320487854 is about 17902.1745606504. The cubic root of 320487854 is about 684.3377932665.

The spelling of 320487854 in words is "three hundred twenty million, four hundred eighty-seven thousand, eight hundred fifty-four".