320649093 has 12 divisors (see below), whose sum is σ = 466697088. Its totient is φ = 212133480.

The previous prime is 320649083. The next prime is 320649113. The reversal of 320649093 is 390946023.

It is a happy number.

320649093 is a `hidden beast` number, since 3 + 2 + 0 + 649 + 0 + 9 + 3 = 666.

It is not a de Polignac number, because 320649093 - 2⁵ = 320649061 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (320649083) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 134805 + ... + 137162.

It is an arithmetic number, because the mean of its divisors is an integer number (38891424).

Almost surely, 2^320649093 is an apocalyptic number.

It is an amenable number.

320649093 is a deficient number, since it is larger than the sum of its proper divisors (146047995).

320649093 is a wasteful number, since it uses less digits than its factorization.

320649093 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 272104 (or 272101 counting only the distinct ones).

The product of its (nonzero) digits is 34992, while the sum is 36.

The square root of 320649093 is about 17906.6773299795. The cubic root of 320649093 is about 684.4525385844.

The spelling of 320649093 in words is "three hundred twenty million, six hundred forty-nine thousand, ninety-three".