1346689 has 8 divisors (see below), whose sum is σ = 1465128. Its totient is φ = 1232640.

The previous prime is 1346669. The next prime is 1346693. The reversal of 1346689 is 9866431.

It can be written as a sum of positive squares in 4 ways, for example, as 1016064 + 330625 = 1008^2 + 575^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 1346689 - 2¹¹ = 1344641 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (37).

It is a plaindrome in base 10.

It is not an unprimeable number, because it can be changed into a prime (1346629) 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 7 ways as a sum of consecutive naturals, for example, 442 + ... + 1699.

It is an arithmetic number, because the mean of its divisors is an integer number (183141).

2^1346689 is an apocalyptic number.

It is an amenable number.

1346689 is a deficient number, since it is larger than the sum of its proper divisors (118439).

1346689 is a wasteful number, since it uses less digits than its factorization.

1346689 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2195.

The product of its digits is 31104, while the sum is 37.

The square root of 1346689 is about 1160.4693016190. The cubic root of 1346689 is about 110.4305167073.

The spelling of 1346689 in words is "one million, three hundred forty-six thousand, six hundred eighty-nine".