320090347 has 2 divisors, whose sum is σ = 320090348. Its totient is φ = 320090346.

The previous prime is 320090317. The next prime is 320090387. The reversal of 320090347 is 743090023.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 320090347 - 2²³ = 311701739 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (320090317) 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 as a sum of consecutive naturals, namely, 160045173 + 160045174.

It is an arithmetic number, because the mean of its divisors is an integer number (160045174).

Almost surely, 2^320090347 is an apocalyptic number.

320090347 is a deficient number, since it is larger than the sum of its proper divisors (1).

320090347 is an equidigital number, since it uses as much as digits as its factorization.

320090347 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4536, while the sum is 28.

The square root of 320090347 is about 17891.0689172000. The cubic root of 320090347 is about 684.0547439456.

The spelling of 320090347 in words is "three hundred twenty million, ninety thousand, three hundred forty-seven".