1387206 has 20 divisors (see below), whose sum is σ = 3108732. Its totient is φ = 462348.

The previous prime is 1387189. The next prime is 1387207. The reversal of 1387206 is 6027831.

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a self number, because there is not a number n which added to its sum of digits gives 1387206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1387207) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 4120 + ... + 4443.

2^1387206 is an apocalyptic number.

1387206 is an abundant number, since it is smaller than the sum of its proper divisors (1721526).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1387206 is an equidigital number, since it uses as much as digits as its factorization.

1387206 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8577 (or 8568 counting only the distinct ones).

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

The square root of 1387206 is about 1177.7970962776. The cubic root of 1387206 is about 111.5270768831.

The spelling of 1387206 in words is "one million, three hundred eighty-seven thousand, two hundred six".