389667 has 8 divisors (see below), whose sum is σ = 523024. Its totient is φ = 258048.

The previous prime is 389663. The next prime is 389687. The reversal of 389667 is 766983.

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

It is not a de Polignac number, because 389667 - 2² = 389663 is a prime.

It is a Duffinian number.

389667 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (389663) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 243 + ... + 915.

It is an arithmetic number, because the mean of its divisors is an integer number (65378).

2³⁸⁹⁶⁶⁷ is an apocalyptic number.

389667 is a deficient number, since it is larger than the sum of its proper divisors (133357).

389667 is a wasteful number, since it uses less digits than its factorization.

389667 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 869.

The product of its digits is 54432, while the sum is 39.

The square root of 389667 is about 624.2331295277. The cubic root of 389667 is about 73.0406354108.

The spelling of 389667 in words is "three hundred eighty-nine thousand, six hundred sixty-seven".