1386563 has 4 divisors (see below), whose sum is σ = 1459560. Its totient is φ = 1313568.

The previous prime is 1386557. The next prime is 1386569. The reversal of 1386563 is 3656831.

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

It is an interprime number because it is at equal distance from previous prime (1386557) and next prime (1386569).

It is a cyclic number.

It is not a de Polignac number, because 1386563 - 2⁶ = 1386499 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1386569) 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, 36470 + ... + 36507.

It is an arithmetic number, because the mean of its divisors is an integer number (364890).

2^1386563 is an apocalyptic number.

1386563 is a deficient number, since it is larger than the sum of its proper divisors (72997).

1386563 is an equidigital number, since it uses as much as digits as its factorization.

1386563 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72996.

The product of its digits is 12960, while the sum is 32.

The square root of 1386563 is about 1177.5240974180. The cubic root of 1386563 is about 111.5098424821.

The spelling of 1386563 in words is "one million, three hundred eighty-six thousand, five hundred sixty-three".