1387834377 has 16 divisors (see below), whose sum is σ = 1891338240. Its totient is φ = 904808592.

The previous prime is 1387834361. The next prime is 1387834397. The reversal of 1387834377 is 7734387831.

It is a happy number.

It is not a de Polignac number, because 1387834377 - 2⁴ = 1387834361 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1387834397) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 214374 + ... + 220752.

It is an arithmetic number, because the mean of its divisors is an integer number (118208640).

Almost surely, 2^1387834377 is an apocalyptic number.

It is an amenable number.

1387834377 is a deficient number, since it is larger than the sum of its proper divisors (503503863).

1387834377 is a wasteful number, since it uses less digits than its factorization.

1387834377 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7972.

The product of its digits is 2370816, while the sum is 51.

The square root of 1387834377 is about 37253.6491769598. The cubic root of 1387834377 is about 1115.4391419752.

The spelling of 1387834377 in words is "one billion, three hundred eighty-seven million, eight hundred thirty-four thousand, three hundred seventy-seven".