1368685 has 8 divisors (see below), whose sum is σ = 1649376. Its totient is φ = 1090320.

The previous prime is 1368683. The next prime is 1368727. The reversal of 1368685 is 5868631.

1368685 is a nontrivial binomial coefficient, being equal to C(1655, 2).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1368685 - 2¹ = 1368683 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1368683) 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 in 7 ways as a sum of consecutive naturals, for example, 1242 + ... + 2068.

It is an arithmetic number, because the mean of its divisors is an integer number (206172).

2^1368685 is an apocalyptic number.

1368685 is the 1654-th triangular number.

1368685 is the 552-nd centered nonagonal number.

It is an amenable number.

1368685 is a deficient number, since it is larger than the sum of its proper divisors (280691).

1368685 is an equidigital number, since it uses as much as digits as its factorization.

1368685 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1163.

The product of its digits is 34560, while the sum is 37.

The square root of 1368685 is about 1169.9081160501. The cubic root of 1368685 is about 111.0285076793.

The spelling of 1368685 in words is "one million, three hundred sixty-eight thousand, six hundred eighty-five".