320374669 has 2 divisors, whose sum is σ = 320374670. Its totient is φ = 320374668.

The previous prime is 320374657. The next prime is 320374693. The reversal of 320374669 is 966473023.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 160655625 + 159719044 = 12675^2 + 12638^2 .

It is an emirp because it is prime and its reverse (966473023) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 320374669 - 2⁷ = 320374541 is a prime.

It is a super-2 number, since 2×320374669² = 205279857073719122, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (320374699) 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, 160187334 + 160187335.

It is an arithmetic number, because the mean of its divisors is an integer number (160187335).

Almost surely, 2^320374669 is an apocalyptic number.

It is an amenable number.

320374669 is a deficient number, since it is larger than the sum of its proper divisors (1).

320374669 is an equidigital number, since it uses as much as digits as its factorization.

320374669 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 163296, while the sum is 40.

The square root of 320374669 is about 17899.0130733513. The cubic root of 320374669 is about 684.2572224614.

The spelling of 320374669 in words is "three hundred twenty million, three hundred seventy-four thousand, six hundred sixty-nine".