1224671 has 8 divisors (see below), whose sum is σ = 1426464. Its totient is φ = 1029600.

The previous prime is 1224637. The next prime is 1224673. The reversal of 1224671 is 1764221.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1224671 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1224673) 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, 1280 + ... + 2021.

It is an arithmetic number, because the mean of its divisors is an integer number (178308).

2^1224671 is an apocalyptic number.

1224671 is a deficient number, since it is larger than the sum of its proper divisors (201793).

1224671 is an equidigital number, since it uses as much as digits as its factorization.

1224671 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3361.

The product of its digits is 672, while the sum is 23.

The square root of 1224671 is about 1106.6485440283. The cubic root of 1224671 is about 106.9891682633.

Adding to 1224671 its reverse (1764221), we get a palindrome (2988892).

The spelling of 1224671 in words is "one million, two hundred twenty-four thousand, six hundred seventy-one".