389415 has 16 divisors (see below), whose sum is σ = 671328. Its totient is φ = 191616.

The previous prime is 389401. The next prime is 389437. The reversal of 389415 is 514983.

It is not a de Polignac number, because 389415 - 2⁴ = 389399 is a prime.

389415 is a lucky number.

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 389415.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 804 + ... + 1193.

It is an arithmetic number, because the mean of its divisors is an integer number (41958).

2³⁸⁹⁴¹⁵ is an apocalyptic number.

389415 is a deficient number, since it is larger than the sum of its proper divisors (281913).

389415 is a wasteful number, since it uses less digits than its factorization.

389415 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2018.

The product of its digits is 4320, while the sum is 30.

The square root of 389415 is about 624.0312492175. The cubic root of 389415 is about 73.0248867422.

It can be divided in two parts, 38 and 9415, that added together give a triangular number (9453 = T₁₃₇).

The spelling of 389415 in words is "three hundred eighty-nine thousand, four hundred fifteen".