1386489 has 16 divisors (see below), whose sum is σ = 2022272. Its totient is φ = 839808.

The previous prime is 1386479. The next prime is 1386491. The reversal of 1386489 is 9846831.

It is not a de Polignac number, because 1386489 - 2⁵ = 1386457 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a Duffinian number.

Its product of digits (41472) is a multiple of the sum of its prime divisors (576).

It is not an unprimeable number, because it can be changed into a prime (1386419) 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 15 ways as a sum of consecutive naturals, for example, 2604 + ... + 3090.

It is an arithmetic number, because the mean of its divisors is an integer number (126392).

2^1386489 is an apocalyptic number.

It is an amenable number.

1386489 is a deficient number, since it is larger than the sum of its proper divisors (635783).

1386489 is a wasteful number, since it uses less digits than its factorization.

1386489 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 576.

The product of its digits is 41472, while the sum is 39.

The square root of 1386489 is about 1177.4926751365. The cubic root of 1386489 is about 111.5078587100.

The spelling of 1386489 in words is "one million, three hundred eighty-six thousand, four hundred eighty-nine".