320380699 has 2 divisors, whose sum is σ = 320380700. Its totient is φ = 320380698.

The previous prime is 320380673. The next prime is 320380727. The reversal of 320380699 is 996083023.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-320380699 is a prime.

It is not a weakly prime, because it can be changed into another prime (320380609) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 160190349 + 160190350.

It is an arithmetic number, because the mean of its divisors is an integer number (160190350).

Almost surely, 2^320380699 is an apocalyptic number.

320380699 is a deficient number, since it is larger than the sum of its proper divisors (1).

320380699 is an equidigital number, since it uses as much as digits as its factorization.

320380699 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 69984, while the sum is 40.

The square root of 320380699 is about 17899.1815176002. The cubic root of 320380699 is about 684.2615153988.

The spelling of 320380699 in words is "three hundred twenty million, three hundred eighty thousand, six hundred ninety-nine".