1427443 has 4 divisors (see below), whose sum is σ = 1433608. Its totient is φ = 1421280.

The previous prime is 1427431. The next prime is 1427453. The reversal of 1427443 is 3447241.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3447241 = 7 ⋅492463.

It is a cyclic number.

It is not a de Polignac number, because 1427443 - 2⁵ = 1427411 is a prime.

It is a Duffinian number.

1427443 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (1427453) 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, 2721 + ... + 3202.

It is an arithmetic number, because the mean of its divisors is an integer number (358402).

2^1427443 is an apocalyptic number.

1427443 is a deficient number, since it is larger than the sum of its proper divisors (6165).

1427443 is an equidigital number, since it uses as much as digits as its factorization.

1427443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6164.

The product of its digits is 2688, while the sum is 25.

The square root of 1427443 is about 1194.7564605391. The cubic root of 1427443 is about 112.5951261263.

The spelling of 1427443 in words is "one million, four hundred twenty-seven thousand, four hundred forty-three".