387696984 has 128 divisors (see below), whose sum is σ = 1036385280. Its totient is φ = 120704000.

The previous prime is 387696983. The next prime is 387696997. The reversal of 387696984 is 489696783.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (387696983) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3838534 + ... + 3838634.

It is an arithmetic number, because the mean of its divisors is an integer number (8096760).

Almost surely, 2^387696984 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 387696984, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (518192640).

387696984 is an abundant number, since it is smaller than the sum of its proper divisors (648688296).

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

387696984 is a wasteful number, since it uses less digits than its factorization.

387696984 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 281 (or 277 counting only the distinct ones).

The product of its digits is 15676416, while the sum is 60.

The square root of 387696984 is about 19690.0224479303. The cubic root of 387696984 is about 729.1733834672.

It can be divided in two parts, 38769 and 6984, that added together give a triangular number (45753 = T₃₀₂).

The spelling of 387696984 in words is "three hundred eighty-seven million, six hundred ninety-six thousand, nine hundred eighty-four".