384669769 has 9 divisors (see below), whose sum is σ = 423056109. Its totient is φ = 349503660.

The previous prime is 384669751. The next prime is 384669773. The reversal of 384669769 is 967966483.

The square root of 384669769 is 19613.

It is a perfect power (a square), and thus also a powerful number.

It is not a de Polignac number, because 384669769 - 2⁵ = 384669737 is a prime.

It is a super-2 number, since 2×384669769² = 295941662365026722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (384669709) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 214852 + ... + 216634.

Almost surely, 2^384669769 is an apocalyptic number.

384669769 is the 19613-rd square number.

384669769 is the 9807-th centered octagonal number.

It is an amenable number.

384669769 is a deficient number, since it is larger than the sum of its proper divisors (38386340).

384669769 is an frugal number, since it uses more digits than its factorization.

384669769 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3588 (or 1794 counting only the distinct ones).

The product of its digits is 11757312, while the sum is 58.

The cubic root of 384669769 is about 727.2705788473.

The spelling of 384669769 in words is "three hundred eighty-four million, six hundred sixty-nine thousand, seven hundred sixty-nine".