387923 has 8 divisors (see below), whose sum is σ = 432720. Its totient is φ = 345600.

The previous prime is 387917. The next prime is 387953. The reversal of 387923 is 329783.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-387923 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 387923.

It is not an unprimeable number, because it can be changed into a prime (387913) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 278 + ... + 923.

It is an arithmetic number, because the mean of its divisors is an integer number (54090).

2³⁸⁷⁹²³ is an apocalyptic number.

387923 is a deficient number, since it is larger than the sum of its proper divisors (44797).

387923 is a wasteful number, since it uses less digits than its factorization.

387923 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1237.

The product of its digits is 9072, while the sum is 32.

The square root of 387923 is about 622.8346490041. The cubic root of 387923 is about 72.9315051525.

The spelling of 387923 in words is "three hundred eighty-seven thousand, nine hundred twenty-three".