389809896 has 64 divisors (see below), whose sum is σ = 1136496000. Its totient is φ = 111371904.

The previous prime is 389809883. The next prime is 389809907. The reversal of 389809896 is 698908983.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15445 + ... + 31908.

It is an arithmetic number, because the mean of its divisors is an integer number (17757750).

Almost surely, 2^389809896 is an apocalyptic number.

It is an amenable number.

389809896 is an abundant number, since it is smaller than the sum of its proper divisors (746686104).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

389809896 is a wasteful number, since it uses less digits than its factorization.

389809896 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47383 (or 47365 counting only the distinct ones).

The product of its (nonzero) digits is 6718464, while the sum is 60.

The square root of 389809896 is about 19743.6039263352. The cubic root of 389809896 is about 730.4956263930.

The spelling of 389809896 in words is "three hundred eighty-nine million, eight hundred nine thousand, eight hundred ninety-six".