382665689 has 4 divisors (see below), whose sum is σ = 437332224. Its totient is φ = 327999156.

The previous prime is 382665683. The next prime is 382665707. The reversal of 382665689 is 986566283.

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-382665689 is a prime.

It is a super-3 number, since 3×382665689³ (a number of 27 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 382665689.

It is not an unprimeable number, because it can be changed into a prime (382665683) 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, 27333257 + ... + 27333270.

It is an arithmetic number, because the mean of its divisors is an integer number (109333056).

Almost surely, 2^382665689 is an apocalyptic number.

It is an amenable number.

382665689 is a deficient number, since it is larger than the sum of its proper divisors (54666535).

382665689 is an equidigital number, since it uses as much as digits as its factorization.

382665689 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54666534.

The product of its digits is 3732480, while the sum is 53.

The square root of 382665689 is about 19561.8426790525. The cubic root of 382665689 is about 726.0053837504.

The spelling of 382665689 in words is "three hundred eighty-two million, six hundred sixty-five thousand, six hundred eighty-nine".