1349889 has 4 divisors (see below), whose sum is σ = 1799856. Its totient is φ = 899924.

The previous prime is 1349867. The next prime is 1349891. The reversal of 1349889 is 9889431.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 9889431 = 3 ⋅3296477.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1349889 is a prime.

It is a D-number.

It is a self number, because there is not a number n which added to its sum of digits gives 1349889.

It is not an unprimeable number, because it can be changed into a prime (1349809) 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, 224979 + ... + 224984.

It is an arithmetic number, because the mean of its divisors is an integer number (449964).

2^1349889 is an apocalyptic number.

It is an amenable number.

1349889 is a deficient number, since it is larger than the sum of its proper divisors (449967).

1349889 is an equidigital number, since it uses as much as digits as its factorization.

1349889 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 449966.

The product of its digits is 62208, while the sum is 42.

The square root of 1349889 is about 1161.8472360857. The cubic root of 1349889 is about 110.5179157836.

The spelling of 1349889 in words is "one million, three hundred forty-nine thousand, eight hundred eighty-nine".