389715 has 8 divisors (see below), whose sum is σ = 623568. Its totient is φ = 207840.

The previous prime is 389713. The next prime is 389723. The reversal of 389715 is 517983.

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

It is not a de Polignac number, because 389715 - 2¹ = 389713 is a prime.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 389715.

It is not an unprimeable number, because it can be changed into a prime (389713) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12976 + ... + 13005.

It is an arithmetic number, because the mean of its divisors is an integer number (77946).

389715 is a Friedman number, since it can be written as 5^8-91*(7+3), using all its digits and the basic arithmetic operations.

2³⁸⁹⁷¹⁵ is an apocalyptic number.

389715 is a deficient number, since it is larger than the sum of its proper divisors (233853).

389715 is a wasteful number, since it uses less digits than its factorization.

389715 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25989.

The product of its digits is 7560, while the sum is 33.

The square root of 389715 is about 624.2715755182. The cubic root of 389715 is about 73.0436343873.

The spelling of 389715 in words is "three hundred eighty-nine thousand, seven hundred fifteen".