1386679 has 4 divisors (see below), whose sum is σ = 1584784. Its totient is φ = 1188576.

The previous prime is 1386667. The next prime is 1386691. The reversal of 1386679 is 9766831.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (1386667) and next prime (1386691).

It is a cyclic number.

It is not a de Polignac number, because 1386679 - 2⁷ = 1386551 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1386659) 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 3 ways as a sum of consecutive naturals, for example, 99042 + ... + 99055.

It is an arithmetic number, because the mean of its divisors is an integer number (396196).

2^1386679 is an apocalyptic number.

1386679 is a deficient number, since it is larger than the sum of its proper divisors (198105).

1386679 is an equidigital number, since it uses as much as digits as its factorization.

1386679 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 198104.

The product of its digits is 54432, while the sum is 40.

The square root of 1386679 is about 1177.5733522800. The cubic root of 1386679 is about 111.5129520369.

The spelling of 1386679 in words is "one million, three hundred eighty-six thousand, six hundred seventy-nine".