389786050 has 12 divisors (see below), whose sum is σ = 725002146. Its totient is φ = 155914400.

The previous prime is 389786039. The next prime is 389786077. The reversal of 389786050 is 50687983.

It is a Cunningham number, because it is equal to 19743²+1.

It can be written as a sum of positive squares in 3 ways, for example, as 359216209 + 30569841 = 18953^2 + 5529^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3897811 + ... + 3897910.

Almost surely, 2^389786050 is an apocalyptic number.

389786050 is a deficient number, since it is larger than the sum of its proper divisors (335216096).

389786050 is a wasteful number, since it uses less digits than its factorization.

389786050 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7795733 (or 7795728 counting only the distinct ones).

The product of its (nonzero) digits is 362880, while the sum is 46.

The square root of 389786050 is about 19743.0000253254. Note that the first 4 decimals coincide. The cubic root of 389786050 is about 730.4807304535.

The spelling of 389786050 in words is "three hundred eighty-nine million, seven hundred eighty-six thousand, fifty".