388893 has 4 divisors (see below), whose sum is σ = 518528. Its totient is φ = 259260.

The previous prime is 388891. The next prime is 388897. The reversal of 388893 is 398883.

It is a happy number.

388893 is digitally balanced in base 7, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 398883 = 3 ⋅132961.

It is not a de Polignac number, because 388893 - 2¹ = 388891 is a prime.

It is a D-number.

It is a Duffinian number.

388893 is strictly pandigital in base 7.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (388891) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 64813 + ... + 64818.

It is an arithmetic number, because the mean of its divisors is an integer number (129632).

2³⁸⁸⁸⁹³ is an apocalyptic number.

It is an amenable number.

388893 is a deficient number, since it is larger than the sum of its proper divisors (129635).

388893 is a wasteful number, since it uses less digits than its factorization.

388893 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 129634.

The product of its digits is 41472, while the sum is 39.

The square root of 388893 is about 623.6128606756. The cubic root of 388893 is about 72.9922428737.

The spelling of 388893 in words is "three hundred eighty-eight thousand, eight hundred ninety-three".