1386207 has 8 divisors (see below), whose sum is σ = 2053680. Its totient is φ = 924120.

The previous prime is 1386199. The next prime is 1386211. The reversal of 1386207 is 7026831.

1386207 is a `hidden beast` number, since 1 + 38 + 620 + 7 = 666.

It is not a de Polignac number, because 1386207 - 2³ = 1386199 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 51341 = 1386207 / (1 + 3 + 8 + 6 + 2 + 0 + 7).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1386607) 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 7 ways as a sum of consecutive naturals, for example, 25644 + ... + 25697.

It is an arithmetic number, because the mean of its divisors is an integer number (256710).

2^1386207 is an apocalyptic number.

1386207 is a deficient number, since it is larger than the sum of its proper divisors (667473).

1386207 is an equidigital number, since it uses as much as digits as its factorization.

1386207 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51350 (or 51344 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 27.

The square root of 1386207 is about 1177.3729230792. The cubic root of 1386207 is about 111.5002982826.

The spelling of 1386207 in words is "one million, three hundred eighty-six thousand, two hundred seven".