384307669 has 2 divisors, whose sum is σ = 384307670. Its totient is φ = 384307668.

The previous prime is 384307639. The next prime is 384307687. The reversal of 384307669 is 966703483.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 235223569 + 149084100 = 15337^2 + 12210^2 .

It is a cyclic number.

It is not a de Polignac number, because 384307669 - 2⁷ = 384307541 is a prime.

It is a super-2 number, since 2×384307669² = 295384768904427122, which contains 22 as substring.

It is a nialpdrome in base 12.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (384307619) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 192153834 + 192153835.

It is an arithmetic number, because the mean of its divisors is an integer number (192153835).

Almost surely, 2^384307669 is an apocalyptic number.

It is an amenable number.

384307669 is a deficient number, since it is larger than the sum of its proper divisors (1).

384307669 is an equidigital number, since it uses as much as digits as its factorization.

384307669 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 653184, while the sum is 46.

The square root of 384307669 is about 19603.7667043862. The cubic root of 384307669 is about 727.0423074206.

The spelling of 384307669 in words is "three hundred eighty-four million, three hundred seven thousand, six hundred sixty-nine".