388969 has 8 divisors (see below), whose sum is σ = 448448. Its totient is φ = 330480.

The previous prime is 388963. The next prime is 388991. The reversal of 388969 is 969883.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 388969 - 2³ = 388961 is a prime.

It is a super-2 number, since 2×388969² = 302593765922, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (388961) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1114 + ... + 1420.

It is an arithmetic number, because the mean of its divisors is an integer number (56056).

388969 is a Friedman number, since it can be written as (9*9-8)^3-8*6, using all its digits and the basic arithmetic operations.

2³⁸⁸⁹⁶⁹ is an apocalyptic number.

It is an amenable number.

388969 is a deficient number, since it is larger than the sum of its proper divisors (59479).

388969 is a wasteful number, since it uses less digits than its factorization.

388969 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 495.

The product of its digits is 93312, while the sum is 43.

The square root of 388969 is about 623.6737929399. The cubic root of 388969 is about 72.9969974370.

The spelling of 388969 in words is "three hundred eighty-eight thousand, nine hundred sixty-nine".