1247223 has 8 divisors (see below), whose sum is σ = 1716736. Its totient is φ = 804600.

The previous prime is 1247209. The next prime is 1247231. The reversal of 1247223 is 3227421.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1247223 - 2⁹ = 1246711 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1247223.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1247243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6613 + ... + 6798.

It is an arithmetic number, because the mean of its divisors is an integer number (214592).

2^1247223 is an apocalyptic number.

1247223 is a deficient number, since it is larger than the sum of its proper divisors (469513).

1247223 is a wasteful number, since it uses less digits than its factorization.

1247223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13445.

The product of its digits is 672, while the sum is 21.

The square root of 1247223 is about 1116.7913860699. The cubic root of 1247223 is about 107.6419038200.

The spelling of 1247223 in words is "one million, two hundred forty-seven thousand, two hundred twenty-three".