388623 has 8 divisors (see below), whose sum is σ = 521136. Its totient is φ = 257600.

The previous prime is 388621. The next prime is 388651. The reversal of 388623 is 326883.

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

It is a cyclic number.

It is not a de Polignac number, because 388623 - 2¹ = 388621 is a prime.

It is a super-2 number, since 2×388623² = 302055672258, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (388621) 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, 613 + ... + 1073.

It is an arithmetic number, because the mean of its divisors is an integer number (65142).

2³⁸⁸⁶²³ is an apocalyptic number.

388623 is a deficient number, since it is larger than the sum of its proper divisors (132513).

388623 is a wasteful number, since it uses less digits than its factorization.

388623 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 745.

The product of its digits is 6912, while the sum is 30.

The square root of 388623 is about 623.3963426264. The cubic root of 388623 is about 72.9753466510.

The spelling of 388623 in words is "three hundred eighty-eight thousand, six hundred twenty-three".