1002447 has 12 divisors (see below), whose sum is σ = 1495104. Its totient is φ = 646560.

The previous prime is 1002433. The next prime is 1002451. The reversal of 1002447 is 7442001.

It is a happy number.

It is not a de Polignac number, because 1002447 - 2⁸ = 1002191 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1002427) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1518 + ... + 2075.

It is an arithmetic number, because the mean of its divisors is an integer number (124592).

2^1002447 is an apocalyptic number.

1002447 is a deficient number, since it is larger than the sum of its proper divisors (492657).

1002447 is a wasteful number, since it uses less digits than its factorization.

1002447 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3630 (or 3627 counting only the distinct ones).

The product of its (nonzero) digits is 224, while the sum is 18.

The square root of 1002447 is about 1001.2227524382. Note that the first 3 decimals coincide. The cubic root of 1002447 is about 100.0815002258.

Adding to 1002447 its reverse (7442001), we get a palindrome (8444448).

The spelling of 1002447 in words is "one million, two thousand, four hundred forty-seven".