1244867 has 8 divisors (see below), whose sum is σ = 1384320. Its totient is φ = 1111680.

The previous prime is 1244863. The next prime is 1244879. The reversal of 1244867 is 7684421.

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 1244867 - 2² = 1244863 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1244863) 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, 1142 + ... + 1947.

It is an arithmetic number, because the mean of its divisors is an integer number (173040).

2^1244867 is an apocalyptic number.

1244867 is a deficient number, since it is larger than the sum of its proper divisors (139453).

1244867 is a wasteful number, since it uses less digits than its factorization.

1244867 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3133.

The product of its digits is 10752, while the sum is 32.

The square root of 1244867 is about 1115.7360799042. The cubic root of 1244867 is about 107.5740827008.

The spelling of 1244867 in words is "one million, two hundred forty-four thousand, eight hundred sixty-seven".