388501 has 4 divisors (see below), whose sum is σ = 411372. Its totient is φ = 365632.

The previous prime is 388499. The next prime is 388519. The reversal of 388501 is 105883.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 181476 + 207025 = 426^2 + 455^2 .

It is a cyclic number.

It is not a de Polignac number, because 388501 - 2¹ = 388499 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (388541) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11410 + ... + 11443.

It is an arithmetic number, because the mean of its divisors is an integer number (102843).

2³⁸⁸⁵⁰¹ is an apocalyptic number.

It is an amenable number.

388501 is a deficient number, since it is larger than the sum of its proper divisors (22871).

388501 is a wasteful number, since it uses less digits than its factorization.

388501 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22870.

The product of its (nonzero) digits is 960, while the sum is 25.

The square root of 388501 is about 623.2984838743. The cubic root of 388501 is about 72.9677094944.

The spelling of 388501 in words is "three hundred eighty-eight thousand, five hundred one".