1368986 has 4 divisors (see below), whose sum is σ = 2053482. Its totient is φ = 684492.

The previous prime is 1368979. The next prime is 1368989. The reversal of 1368986 is 6898631.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 6898631 = 103 ⋅66977.

It can be written as a sum of positive squares in only one way, i.e., 1038361 + 330625 = 1019^2 + 575^2 .

It is not an unprimeable number, because it can be changed into a prime (1368989) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 342245 + ... + 342248.

2^1368986 is an apocalyptic number.

1368986 is a deficient number, since it is larger than the sum of its proper divisors (684496).

1368986 is an equidigital number, since it uses as much as digits as its factorization.

1368986 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 684495.

The product of its digits is 62208, while the sum is 41.

The square root of 1368986 is about 1170.0367515595. The cubic root of 1368986 is about 111.0366461800.

The spelling of 1368986 in words is "one million, three hundred sixty-eight thousand, nine hundred eighty-six".