389808982 has 4 divisors (see below), whose sum is σ = 584713476. Its totient is φ = 194904490.

The previous prime is 389808967. The next prime is 389809009. The reversal of 389808982 is 289808983.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 289808983 = 503 ⋅576161.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 97452244 + ... + 97452247.

It is an arithmetic number, because the mean of its divisors is an integer number (146178369).

Almost surely, 2^389808982 is an apocalyptic number.

389808982 is a deficient number, since it is larger than the sum of its proper divisors (194904494).

389808982 is a wasteful number, since it uses less digits than its factorization.

389808982 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 194904493.

The product of its (nonzero) digits is 1990656, while the sum is 55.

The square root of 389808982 is about 19743.5807795850. The cubic root of 389808982 is about 730.4950554536.

Subtracting from 389808982 its reverse (289808983), we obtain a palindrome (99999999).

The spelling of 389808982 in words is "three hundred eighty-nine million, eight hundred eight thousand, nine hundred eighty-two".