1386828377 has 32 divisors (see below), whose sum is σ = 1576022400. Its totient is φ = 1209669120.

The previous prime is 1386828371. The next prime is 1386828383. The reversal of 1386828377 is 7738286831.

1386828377 is nontrivially palindromic in base 7.

It is an interprime number because it is at equal distance from previous prime (1386828371) and next prime (1386828383).

It is not a de Polignac number, because 1386828377 - 2⁴ = 1386828361 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1386828371) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8016263 + ... + 8016435.

It is an arithmetic number, because the mean of its divisors is an integer number (49250700).

Almost surely, 2^1386828377 is an apocalyptic number.

It is an amenable number.

1386828377 is a deficient number, since it is larger than the sum of its proper divisors (189194023).

1386828377 is a wasteful number, since it uses less digits than its factorization.

1386828377 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 473.

The product of its digits is 2709504, while the sum is 53.

The square root of 1386828377 is about 37240.1446962817. The cubic root of 1386828377 is about 1115.1695605713.

The spelling of 1386828377 in words is "one billion, three hundred eighty-six million, eight hundred twenty-eight thousand, three hundred seventy-seven".