384697764 has 72 divisors (see below), whose sum is σ = 1063939968. Its totient is φ = 116233920.

The previous prime is 384697763. The next prime is 384697801. The reversal of 384697764 is 467796483.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 384697764.

It is not an unprimeable number, because it can be changed into a prime (384697763) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 155989 + ... + 158435.

It is an arithmetic number, because the mean of its divisors is an integer number (14776944).

Almost surely, 2^384697764 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 384697764, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (531969984).

384697764 is an abundant number, since it is smaller than the sum of its proper divisors (679242204).

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

384697764 is a wasteful number, since it uses less digits than its factorization.

384697764 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2865 (or 2860 counting only the distinct ones).

The product of its digits is 6096384, while the sum is 54.

The square root of 384697764 is about 19613.7136718165. The cubic root of 384697764 is about 727.2882212059.

The spelling of 384697764 in words is "three hundred eighty-four million, six hundred ninety-seven thousand, seven hundred sixty-four".