1347666 has 8 divisors (see below), whose sum is σ = 2695344. Its totient is φ = 449220.

The previous prime is 1347637. The next prime is 1347667. The reversal of 1347666 is 6667431.

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

1347666 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (1347667) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 112300 + ... + 112311.

It is an arithmetic number, because the mean of its divisors is an integer number (336918).

2^1347666 is an apocalyptic number.

1347666 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

1347666 is a wasteful number, since it uses less digits than its factorization.

1347666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 224616.

The product of its digits is 18144, while the sum is 33.

The square root of 1347666 is about 1160.8901756842. The cubic root of 1347666 is about 110.4572154067.

The spelling of 1347666 in words is "one million, three hundred forty-seven thousand, six hundred sixty-six".