389397 has 8 divisors (see below), whose sum is σ = 522144. Its totient is φ = 258128.

The previous prime is 389381. The next prime is 389399. The reversal of 389397 is 793983.

It is a happy number.

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 389397 - 2⁴ = 389381 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (389399) 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, 658 + ... + 1100.

It is an arithmetic number, because the mean of its divisors is an integer number (65268).

2³⁸⁹³⁹⁷ is an apocalyptic number.

It is an amenable number.

389397 is a deficient number, since it is larger than the sum of its proper divisors (132747).

389397 is a wasteful number, since it uses less digits than its factorization.

389397 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 739.

The product of its digits is 40824, while the sum is 39.

The square root of 389397 is about 624.0168266962. The cubic root of 389397 is about 73.0237615773.

The spelling of 389397 in words is "three hundred eighty-nine thousand, three hundred ninety-seven".