387661736 has 96 divisors (see below), whose sum is σ = 931279680. Its totient is φ = 150833760.

The previous prime is 387661679. The next prime is 387661739. The reversal of 387661736 is 637166783.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (387661739) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 521381 + ... + 522123.

It is an arithmetic number, because the mean of its divisors is an integer number (9700830).

Almost surely, 2^387661736 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 387661736, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (465639840).

387661736 is an abundant number, since it is smaller than the sum of its proper divisors (543617944).

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

387661736 is a wasteful number, since it uses less digits than its factorization.

387661736 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 796 (or 763 counting only the distinct ones).

The product of its digits is 762048, while the sum is 47.

The square root of 387661736 is about 19689.1273549642. The cubic root of 387661736 is about 729.1512848666.

The spelling of 387661736 in words is "three hundred eighty-seven million, six hundred sixty-one thousand, seven hundred thirty-six".