321477936 has 80 divisors (see below), whose sum is σ = 923274240. Its totient is φ = 95719680.

The previous prime is 321477931. The next prime is 321477971. The reversal of 321477936 is 639774123.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (321477931) 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 15 ways as a sum of consecutive naturals, for example, 11035 + ... + 27653.

It is an arithmetic number, because the mean of its divisors is an integer number (11540928).

Almost surely, 2^321477936 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 321477936, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (461637120).

321477936 is an abundant number, since it is smaller than the sum of its proper divisors (601796304).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

321477936 is a wasteful number, since it uses less digits than its factorization.

321477936 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16674 (or 16668 counting only the distinct ones).

The product of its digits is 190512, while the sum is 42.

The square root of 321477936 is about 17929.8057992829. The cubic root of 321477936 is about 685.0417762718.

The spelling of 321477936 in words is "three hundred twenty-one million, four hundred seventy-seven thousand, nine hundred thirty-six".