384496686 has 64 divisors (see below), whose sum is σ = 981020160. Its totient is φ = 109347840.

The previous prime is 384496663. The next prime is 384496709. The reversal of 384496686 is 686694483.

384496686 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (384496663) and next prime (384496709).

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 83566 + ... + 88046.

It is an arithmetic number, because the mean of its divisors is an integer number (15328440).

Almost surely, 2^384496686 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 384496686, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (490510080).

384496686 is an abundant number, since it is smaller than the sum of its proper divisors (596523474).

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

384496686 is a wasteful number, since it uses less digits than its factorization.

384496686 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4726 (or 4720 counting only the distinct ones).

The product of its digits is 5971968, while the sum is 54.

The square root of 384496686 is about 19608.5870475157. The cubic root of 384496686 is about 727.1614834897.

The spelling of 384496686 in words is "three hundred eighty-four million, four hundred ninety-six thousand, six hundred eighty-six".