320220097 has 4 divisors (see below), whose sum is σ = 327667120. Its totient is φ = 312773076.

The previous prime is 320220083. The next prime is 320220119. The reversal of 320220097 is 790022023.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 320220097 - 2⁷ = 320219969 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (320223097) 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 3 ways as a sum of consecutive naturals, for example, 3723447 + ... + 3723532.

It is an arithmetic number, because the mean of its divisors is an integer number (81916780).

Almost surely, 2^320220097 is an apocalyptic number.

It is an amenable number.

320220097 is a deficient number, since it is larger than the sum of its proper divisors (7447023).

320220097 is an equidigital number, since it uses as much as digits as its factorization.

320220097 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7447022.

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

The square root of 320220097 is about 17894.6946607088. The cubic root of 320220097 is about 684.1471596380.

The spelling of 320220097 in words is "three hundred twenty million, two hundred twenty thousand, ninety-seven".