388611 has 16 divisors (see below), whose sum is σ = 592800. Its totient is φ = 251424.

The previous prime is 388573. The next prime is 388621. The reversal of 388611 is 116883.

It is not a de Polignac number, because 388611 - 2⁷ = 388483 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an Ulam 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 15 ways as a sum of consecutive naturals, for example, 805 + ... + 1193.

It is an arithmetic number, because the mean of its divisors is an integer number (37050).

2³⁸⁸⁶¹¹ is an apocalyptic number.

388611 is a deficient number, since it is larger than the sum of its proper divisors (204189).

388611 is a wasteful number, since it uses less digits than its factorization.

388611 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 435 (or 429 counting only the distinct ones).

The product of its digits is 1152, while the sum is 27.

The square root of 388611 is about 623.3867178566. The cubic root of 388611 is about 72.9745955262.

It can be divided in two parts, 388 and 611, that added together give a palindrome (999).

The spelling of 388611 in words is "three hundred eighty-eight thousand, six hundred eleven".