320882091 has 4 divisors (see below), whose sum is σ = 427842792. Its totient is φ = 213921392.

The previous prime is 320882083. The next prime is 320882099. The reversal of 320882091 is 190288023.

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

It is an interprime number because it is at equal distance from previous prime (320882083) and next prime (320882099).

It is a cyclic number.

It is not a de Polignac number, because 320882091 - 2³ = 320882083 is a prime.

It is not an unprimeable number, because it can be changed into a prime (320882099) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 53480346 + ... + 53480351.

It is an arithmetic number, because the mean of its divisors is an integer number (106960698).

Almost surely, 2^320882091 is an apocalyptic number.

320882091 is a deficient number, since it is larger than the sum of its proper divisors (106960701).

320882091 is a wasteful number, since it uses less digits than its factorization.

320882091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106960700.

The product of its (nonzero) digits is 6912, while the sum is 33.

The square root of 320882091 is about 17913.1820456333. The cubic root of 320882091 is about 684.6182830739.

The spelling of 320882091 in words is "three hundred twenty million, eight hundred eighty-two thousand, ninety-one".