387305 has 8 divisors (see below), whose sum is σ = 471744. Its totient is φ = 305200.

The previous prime is 387281. The next prime is 387307. The reversal of 387305 is 503783.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-387305 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (387307) 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 7 ways as a sum of consecutive naturals, for example, 191 + ... + 900.

It is an arithmetic number, because the mean of its divisors is an integer number (58968).

2³⁸⁷³⁰⁵ is an apocalyptic number.

It is an amenable number.

387305 is a deficient number, since it is larger than the sum of its proper divisors (84439).

387305 is a wasteful number, since it uses less digits than its factorization.

387305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1167.

The product of its (nonzero) digits is 2520, while the sum is 26.

The square root of 387305 is about 622.3383324206. The cubic root of 387305 is about 72.8927555158.

The spelling of 387305 in words is "three hundred eighty-seven thousand, three hundred five".