1043389 has 4 divisors (see below), whose sum is σ = 1057756. Its totient is φ = 1029024.

The previous prime is 1043377. The next prime is 1043401. The reversal of 1043389 is 9833401.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9833401 = 283 ⋅34747.

It is an interprime number because it is at equal distance from previous prime (1043377) and next prime (1043401).

It can be written as a sum of positive squares in 2 ways, for example, as 202500 + 840889 = 450^2 + 917^2 .

It is a cyclic number.

It is not a de Polignac number, because 1043389 - 2¹³ = 1035197 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1043369) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7074 + ... + 7219.

It is an arithmetic number, because the mean of its divisors is an integer number (264439).

2^1043389 is an apocalyptic number.

It is an amenable number.

1043389 is a deficient number, since it is larger than the sum of its proper divisors (14367).

1043389 is an equidigital number, since it uses as much as digits as its factorization.

1043389 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14366.

The product of its (nonzero) digits is 2592, while the sum is 28.

The square root of 1043389 is about 1021.4641452347. The cubic root of 1043389 is about 101.4258722513.

The spelling of 1043389 in words is "one million, forty-three thousand, three hundred eighty-nine".