989000000686 has 8 divisors (see below), whose sum is σ = 1483504497000. Its totient is φ = 494498501688.

The previous prime is 989000000683. The next prime is 989000000771. The reversal of 989000000686 is 686000000989.

It is a happy number.

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

989000000686 is a strobogrammatic number because it is the same when read upside-down.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (989000000683) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 476920 + ... + 1485076.

It is an arithmetic number, because the mean of its divisors is an integer number (185438062125).

Almost surely, 2^989000000686 is an apocalyptic number.

989000000686 is a deficient number, since it is larger than the sum of its proper divisors (494504496314).

989000000686 is a wasteful number, since it uses less digits than its factorization.

989000000686 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1498658.

The product of its (nonzero) digits is 186624, while the sum is 46.

The spelling of 989000000686 in words is "nine hundred eighty-nine billion, six hundred eighty-six", and thus it is an aban number.