1303889 has 4 divisors (see below), whose sum is σ = 1334256. Its totient is φ = 1273524.

The previous prime is 1303879. The next prime is 1303903. The reversal of 1303889 is 9883031.

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.

It is a cyclic number.

It is not a de Polignac number, because 1303889 - 2⁴ = 1303873 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1303859) 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 3 ways as a sum of consecutive naturals, for example, 15119 + ... + 15204.

It is an arithmetic number, because the mean of its divisors is an integer number (333564).

2^1303889 is an apocalyptic number.

It is an amenable number.

1303889 is a deficient number, since it is larger than the sum of its proper divisors (30367).

1303889 is an equidigital number, since it uses as much as digits as its factorization.

1303889 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30366.

The product of its (nonzero) digits is 5184, while the sum is 32.

The square root of 1303889 is about 1141.8795908501. The cubic root of 1303889 is about 109.2480114212.

The spelling of 1303889 in words is "one million, three hundred three thousand, eight hundred eighty-nine".