1386624017 has 12 divisors (see below), whose sum is σ = 1445589540. Its totient is φ = 1330019040.

The previous prime is 1386624011. The next prime is 1386624073. The reversal of 1386624017 is 7104266831.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It can be written as a sum of positive squares in 2 ways, for example, as 423701056 + 962922961 = 20584^2 + 31031^2 .

It is not a de Polignac number, because 1386624017 - 2⁸ = 1386623761 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1386624011) 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, 12270953 + ... + 12271065.

It is an arithmetic number, because the mean of its divisors is an integer number (120465795).

Almost surely, 2^1386624017 is an apocalyptic number.

It is an amenable number.

1386624017 is a deficient number, since it is larger than the sum of its proper divisors (58965523).

1386624017 is an frugal number, since it uses more digits than its factorization.

1386624017 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 401 (or 144 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 38.

The square root of 1386624017 is about 37237.4007820095. The cubic root of 1386624017 is about 1115.1147815637.

The spelling of 1386624017 in words is "one billion, three hundred eighty-six million, six hundred twenty-four thousand, seventeen".