388001 has 4 divisors (see below), whose sum is σ = 391872. Its totient is φ = 384132.

The previous prime is 387977. The next prime is 388009. The reversal of 388001 is 100883.

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: 100883 = 79 ⋅1277.

It is a cyclic number.

It is not a de Polignac number, because 388001 - 2¹⁰ = 386977 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a plaindrome in base 11.

It is not an unprimeable number, because it can be changed into a prime (388009) 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, 1781 + ... + 1986.

It is an arithmetic number, because the mean of its divisors is an integer number (97968).

2³⁸⁸⁰⁰¹ is an apocalyptic number.

It is an amenable number.

388001 is a deficient number, since it is larger than the sum of its proper divisors (3871).

388001 is a wasteful number, since it uses less digits than its factorization.

388001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3870.

The product of its (nonzero) digits is 192, while the sum is 20.

The square root of 388001 is about 622.8972627970. The cubic root of 388001 is about 72.9363929577.

Adding to 388001 its reverse (100883), we get a palindrome (488884).

The spelling of 388001 in words is "three hundred eighty-eight thousand, one".