1386711427 has 4 divisors (see below), whose sum is σ = 1387090216. Its totient is φ = 1386332640.

The previous prime is 1386711413. The next prime is 1386711439. The reversal of 1386711427 is 7241176831.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1386711427 - 2¹⁹ = 1386187139 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1386711427.

It is not an unprimeable number, because it can be changed into a prime (1386711457) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 183849 + ... + 191242.

It is an arithmetic number, because the mean of its divisors is an integer number (346772554).

Almost surely, 2^1386711427 is an apocalyptic number.

1386711427 is a deficient number, since it is larger than the sum of its proper divisors (378789).

1386711427 is an equidigital number, since it uses as much as digits as its factorization.

1386711427 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 378788.

The product of its digits is 56448, while the sum is 40.

The square root of 1386711427 is about 37238.5744490844. The cubic root of 1386711427 is about 1115.1382126053.

The spelling of 1386711427 in words is "one billion, three hundred eighty-six million, seven hundred eleven thousand, four hundred twenty-seven".