384467969 has 2 divisors, whose sum is σ = 384467970. Its totient is φ = 384467968.

The previous prime is 384467929. The next prime is 384467987. The reversal of 384467969 is 969764483.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 276058225 + 108409744 = 16615^2 + 10412^2 .

It is an emirp because it is prime and its reverse (969764483) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 384467969 - 2²⁸ = 116032513 is a prime.

It is a super-2 number, since 2×384467969² = 295631238373969922, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (384467929) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 192233984 + 192233985.

It is an arithmetic number, because the mean of its divisors is an integer number (192233985).

Almost surely, 2^384467969 is an apocalyptic number.

It is an amenable number.

384467969 is a deficient number, since it is larger than the sum of its proper divisors (1).

384467969 is an equidigital number, since it uses as much as digits as its factorization.

384467969 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 7838208, while the sum is 56.

The square root of 384467969 is about 19607.8547781240. The cubic root of 384467969 is about 727.1433798086.

The spelling of 384467969 in words is "three hundred eighty-four million, four hundred sixty-seven thousand, nine hundred sixty-nine".