388899 has 12 divisors (see below), whose sum is σ = 642096. Its totient is φ = 222192.

The previous prime is 388897. The next prime is 388901. The reversal of 388899 is 998883.

388899 = T₉₂ + T₉₃ + ... + T₁₄₅.

It is an interprime number because it is at equal distance from previous prime (388897) and next prime (388901).

It is not a de Polignac number, because 388899 - 2¹ = 388897 is a prime.

It is a plaindrome in base 10.

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

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3024 + ... + 3149.

It is an arithmetic number, because the mean of its divisors is an integer number (53508).

2³⁸⁸⁸⁹⁹ is an apocalyptic number.

388899 is a deficient number, since it is larger than the sum of its proper divisors (253197).

388899 is a wasteful number, since it uses less digits than its factorization.

388899 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6186 (or 6183 counting only the distinct ones).

The product of its digits is 124416, while the sum is 45.

The square root of 388899 is about 623.6176713340. The cubic root of 388899 is about 72.9926182565.

Adding to 388899 its product of digits (124416), we get a palindrome (513315).

The spelling of 388899 in words is "three hundred eighty-eight thousand, eight hundred ninety-nine".