389563406 has 4 divisors (see below), whose sum is σ = 584345112. Its totient is φ = 194781702.

The previous prime is 389563373. The next prime is 389563411. The reversal of 389563406 is 604365983.

It is a semiprime because it is the product of two primes.

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, 97390850 + ... + 97390853.

It is an arithmetic number, because the mean of its divisors is an integer number (146086278).

Almost surely, 2^389563406 is an apocalyptic number.

389563406 is a deficient number, since it is larger than the sum of its proper divisors (194781706).

389563406 is a wasteful number, since it uses less digits than its factorization.

389563406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 194781705.

The product of its (nonzero) digits is 466560, while the sum is 44.

The square root of 389563406 is about 19737.3606644860. The cubic root of 389563406 is about 730.3416215522.

The spelling of 389563406 in words is "three hundred eighty-nine million, five hundred sixty-three thousand, four hundred six".