389984356 has 6 divisors (see below), whose sum is σ = 682472630. Its totient is φ = 194992176.

The previous prime is 389984347. The next prime is 389984417. The reversal of 389984356 is 653489983.

It can be written as a sum of positive squares in only one way, i.e., 268632100 + 121352256 = 16390^2 + 11016^2 .

It is a junction number, because it is equal to n+sod(n) for n = 389984297 and 389984306.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 48748041 + ... + 48748048.

Almost surely, 2^389984356 is an apocalyptic number.

It is an amenable number.

389984356 is a deficient number, since it is larger than the sum of its proper divisors (292488274).

389984356 is a wasteful number, since it uses less digits than its factorization.

389984356 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 97496093 (or 97496091 counting only the distinct ones).

The product of its digits is 5598720, while the sum is 55.

The square root of 389984356 is about 19748.0215717930. The cubic root of 389984356 is about 730.6045882748.

The spelling of 389984356 in words is "three hundred eighty-nine million, nine hundred eighty-four thousand, three hundred fifty-six".