389898766 has 8 divisors (see below), whose sum is σ = 599112864. Its totient is φ = 190194480.

The previous prime is 389898739. The next prime is 389898781. The reversal of 389898766 is 667898983.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 389898698 and 389898707.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2377350 + ... + 2377513.

It is an arithmetic number, because the mean of its divisors is an integer number (74889108).

Almost surely, 2^389898766 is an apocalyptic number.

389898766 is a deficient number, since it is larger than the sum of its proper divisors (209214098).

389898766 is a wasteful number, since it uses less digits than its factorization.

389898766 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4754906.

The product of its digits is 31352832, while the sum is 64.

The square root of 389898766 is about 19745.8544003545. The cubic root of 389898766 is about 730.5511356846.

The spelling of 389898766 in words is "three hundred eighty-nine million, eight hundred ninety-eight thousand, seven hundred sixty-six".