1447239 has 4 divisors (see below), whose sum is σ = 1929656. Its totient is φ = 964824.

The previous prime is 1447231. The next prime is 1447241. The reversal of 1447239 is 9327441.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 1447239 - 2³ = 1447231 is a prime.

It is a D-number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1447231) 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, 241204 + ... + 241209.

It is an arithmetic number, because the mean of its divisors is an integer number (482414).

2^1447239 is an apocalyptic number.

1447239 is a deficient number, since it is larger than the sum of its proper divisors (482417).

1447239 is an equidigital number, since it uses as much as digits as its factorization.

1447239 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 482416.

The product of its digits is 6048, while the sum is 30.

The square root of 1447239 is about 1203.0124687633. The cubic root of 1447239 is about 113.1132339237.

Subtracting from 1447239 its sum of digits (30), we obtain a square (1447209 = 1203²).

The spelling of 1447239 in words is "one million, four hundred forty-seven thousand, two hundred thirty-nine".