387764 has 12 divisors (see below), whose sum is σ = 730884. Its totient is φ = 178944.

The previous prime is 387763. The next prime is 387781. The reversal of 387764 is 467783.

It can be written as a sum of positive squares in 2 ways, for example, as 85264 + 302500 = 292^2 + 550^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (387763) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3677 + ... + 3780.

It is an arithmetic number, because the mean of its divisors is an integer number (60907).

2³⁸⁷⁷⁶⁴ is an apocalyptic number.

It is an amenable number.

387764 is a deficient number, since it is larger than the sum of its proper divisors (343120).

387764 is a wasteful number, since it uses less digits than its factorization.

387764 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7474 (or 7472 counting only the distinct ones).

The product of its digits is 28224, while the sum is 35.

The square root of 387764 is about 622.7069936977. The cubic root of 387764 is about 72.9215395202.

The spelling of 387764 in words is "three hundred eighty-seven thousand, seven hundred sixty-four".