1386822685 has 8 divisors (see below), whose sum is σ = 1762080696. Its totient is φ = 1044195840.

The previous prime is 1386822667. The next prime is 1386822721. The reversal of 1386822685 is 5862286831.

It can be written as a sum of positive squares in 4 ways, for example, as 62299449 + 1324523236 = 7893^2 + 36394^2 .

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

It is not a de Polignac number, because 1386822685 - 2⁷ = 1386822557 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8157696 + ... + 8157865.

It is an arithmetic number, because the mean of its divisors is an integer number (220260087).

Almost surely, 2^1386822685 is an apocalyptic number.

It is an amenable number.

1386822685 is a deficient number, since it is larger than the sum of its proper divisors (375258011).

1386822685 is a wasteful number, since it uses less digits than its factorization.

1386822685 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16315583.

The product of its digits is 1105920, while the sum is 49.

The square root of 1386822685 is about 37240.0682732994. The cubic root of 1386822685 is about 1115.1680348949.

The spelling of 1386822685 in words is "one billion, three hundred eighty-six million, eight hundred twenty-two thousand, six hundred eighty-five".