1386828387 has 12 divisors (see below), whose sum is σ = 2289367600. Its totient is φ = 792473328.

The previous prime is 1386828383. The next prime is 1386828419. The reversal of 1386828387 is 7838286831.

It is not a de Polignac number, because 1386828387 - 2² = 1386828383 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1386828383) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11006512 + ... + 11006637.

Almost surely, 2^1386828387 is an apocalyptic number.

1386828387 is a deficient number, since it is larger than the sum of its proper divisors (902539213).

1386828387 is a wasteful number, since it uses less digits than its factorization.

1386828387 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22013162 (or 22013159 counting only the distinct ones).

The product of its digits is 3096576, while the sum is 54.

The square root of 1386828387 is about 37240.1448305454. The cubic root of 1386828387 is about 1115.1695632517.

The spelling of 1386828387 in words is "one billion, three hundred eighty-six million, eight hundred twenty-eight thousand, three hundred eighty-seven".