388829 has 4 divisors (see below), whose sum is σ = 444384. Its totient is φ = 333276.

The previous prime is 388823. The next prime is 388837. The reversal of 388829 is 928883.

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.

It is a cyclic number.

It is not a de Polignac number, because 388829 - 2⁴ = 388813 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 388792 and 388801.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 388829.

It is not an unprimeable number, because it can be changed into a prime (388823) 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, 27767 + ... + 27780.

It is an arithmetic number, because the mean of its divisors is an integer number (111096).

2³⁸⁸⁸²⁹ is an apocalyptic number.

It is an amenable number.

388829 is a deficient number, since it is larger than the sum of its proper divisors (55555).

388829 is an equidigital number, since it uses as much as digits as its factorization.

388829 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55554.

The product of its digits is 27648, while the sum is 38.

The square root of 388829 is about 623.5615446770. The cubic root of 388829 is about 72.9882385505.

The spelling of 388829 in words is "three hundred eighty-eight thousand, eight hundred twenty-nine".