1386969 has 8 divisors (see below), whose sum is σ = 1929792. Its totient is φ = 884400.

The previous prime is 1386953. The next prime is 1386977. The reversal of 1386969 is 9696831.

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

It is not a de Polignac number, because 1386969 - 2⁴ = 1386953 is a prime.

It is a super-2 number, since 2×1386969² = 3847366013922, which contains 22 as substring.

1386969 is a modest number, since divided by 6969 gives 138 as remainder.

It is a self number, because there is not a number n which added to its sum of digits gives 1386969.

It is not an unprimeable number, because it can be changed into a prime (1386929) 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, 9982 + ... + 10119.

It is an arithmetic number, because the mean of its divisors is an integer number (241224).

2^1386969 is an apocalyptic number.

It is an amenable number.

1386969 is a deficient number, since it is larger than the sum of its proper divisors (542823).

1386969 is a wasteful number, since it uses less digits than its factorization.

1386969 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20127.

The product of its digits is 69984, while the sum is 42.

The square root of 1386969 is about 1177.6964804227. The cubic root of 1386969 is about 111.5207251654.

The spelling of 1386969 in words is "one million, three hundred eighty-six thousand, nine hundred sixty-nine".