382391969 has 4 divisors (see below), whose sum is σ = 384738096. Its totient is φ = 380045844.

The previous prime is 382391963. The next prime is 382391993. The reversal of 382391969 is 969193283.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-382391969 is a prime.

It is a super-2 number, since 2×382391969² = 292447235911393922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (382391963) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1172819 + ... + 1173144.

It is an arithmetic number, because the mean of its divisors is an integer number (96184524).

Almost surely, 2^382391969 is an apocalyptic number.

It is an amenable number.

382391969 is a deficient number, since it is larger than the sum of its proper divisors (2346127).

382391969 is a wasteful number, since it uses less digits than its factorization.

382391969 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2346126.

The product of its digits is 629856, while the sum is 50.

The square root of 382391969 is about 19554.8451540788. The cubic root of 382391969 is about 725.8322390621.

The spelling of 382391969 in words is "three hundred eighty-two million, three hundred ninety-one thousand, nine hundred sixty-nine".