1349643 has 8 divisors (see below), whose sum is σ = 1807056. Its totient is φ = 896000.

The previous prime is 1349533. The next prime is 1349651. The reversal of 1349643 is 3469431.

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 1349643 - 2¹⁰ = 1348619 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1349643.

It is not an unprimeable number, because it can be changed into a prime (1349683) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 43 + ... + 1643.

It is an arithmetic number, because the mean of its divisors is an integer number (225882).

2^1349643 is an apocalyptic number.

1349643 is a deficient number, since it is larger than the sum of its proper divisors (457413).

1349643 is a wasteful number, since it uses less digits than its factorization.

1349643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1885.

The product of its digits is 7776, while the sum is 30.

The square root of 1349643 is about 1161.7413653649. The cubic root of 1349643 is about 110.5112018837.

The spelling of 1349643 in words is "one million, three hundred forty-nine thousand, six hundred forty-three".