1385677647 has 12 divisors (see below), whose sum is σ = 2034347224. Its totient is φ = 908640720.

The previous prime is 1385677621. The next prime is 1385677663. The reversal of 1385677647 is 7467765831.

1385677647 is a `hidden beast` number, since 1 + 3 + 8 + 567 + 76 + 4 + 7 = 666.

It is not a de Polignac number, because 1385677647 - 2⁶ = 1385677583 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1385677593 and 1385677602.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1385677607) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1261453 + ... + 1262550.

Almost surely, 2^1385677647 is an apocalyptic number.

1385677647 is a deficient number, since it is larger than the sum of its proper divisors (648669577).

1385677647 is a wasteful number, since it uses less digits than its factorization.

1385677647 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2524070 (or 2524067 counting only the distinct ones).

The product of its digits is 5927040, while the sum is 54.

The square root of 1385677647 is about 37224.6913620516. The cubic root of 1385677647 is about 1114.8610354540.

The spelling of 1385677647 in words is "one billion, three hundred eighty-five million, six hundred seventy-seven thousand, six hundred forty-seven".