1423447 has 8 divisors (see below), whose sum is σ = 1497600. Its totient is φ = 1350360.

The previous prime is 1423441. The next prime is 1423451. The reversal of 1423447 is 7443241.

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 1423447 - 2³ = 1423439 is a prime.

It is a Duffinian number.

1423447 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1423441) 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, 4422 + ... + 4732.

It is an arithmetic number, because the mean of its divisors is an integer number (187200).

2^1423447 is an apocalyptic number.

1423447 is a deficient number, since it is larger than the sum of its proper divisors (74153).

1423447 is a wasteful number, since it uses less digits than its factorization.

1423447 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 533.

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

The square root of 1423447 is about 1193.0829811878. The cubic root of 1423447 is about 112.4899612442.

Adding to 1423447 its reverse (7443241), we get a palindrome (8866688).

The spelling of 1423447 in words is "one million, four hundred twenty-three thousand, four hundred forty-seven".