382648989 has 4 divisors (see below), whose sum is σ = 510198656. Its totient is φ = 255099324.

The previous prime is 382648979. The next prime is 382649011. The reversal of 382648989 is 989846283.

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 not a de Polignac number, because 382648989 - 2¹¹ = 382646941 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (382648919) 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, 63774829 + ... + 63774834.

It is an arithmetic number, because the mean of its divisors is an integer number (127549664).

Almost surely, 2^382648989 is an apocalyptic number.

It is an amenable number.

382648989 is a deficient number, since it is larger than the sum of its proper divisors (127549667).

382648989 is a wasteful number, since it uses less digits than its factorization.

382648989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 127549666.

The product of its digits is 5971968, while the sum is 57.

The square root of 382648989 is about 19561.4158229920. The cubic root of 382648989 is about 725.9948223416.

The spelling of 382648989 in words is "three hundred eighty-two million, six hundred forty-eight thousand, nine hundred eighty-nine".