320022097 has 8 divisors (see below), whose sum is σ = 328669992. Its totient is φ = 311414400.

The previous prime is 320022091. The next prime is 320022113. The reversal of 320022097 is 790220023.

It can be written as a sum of positive squares in 4 ways, for example, as 16008001 + 304014096 = 4001^2 + 17436^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-320022097 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (320022091) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6447 + ... + 26107.

It is an arithmetic number, because the mean of its divisors is an integer number (41083749).

Almost surely, 2^320022097 is an apocalyptic number.

It is an amenable number.

320022097 is a deficient number, since it is larger than the sum of its proper divisors (8647895).

320022097 is a wasteful number, since it uses less digits than its factorization.

320022097 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20099.

The product of its (nonzero) digits is 1512, while the sum is 25.

The square root of 320022097 is about 17889.1614392626. The cubic root of 320022097 is about 684.0061221993.

The spelling of 320022097 in words is "three hundred twenty million, twenty-two thousand, ninety-seven".