1223662 has 8 divisors (see below), whose sum is σ = 2002392. Its totient is φ = 556200.

The previous prime is 1223633. The next prime is 1223683. The reversal of 1223662 is 2663221.

It is a happy number.

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

It is a Harshad number since it is a multiple of its sum of digits (22), and also a Moran number because the ratio is a prime number: 55621 = 1223662 / (1 + 2 + 2 + 3 + 6 + 6 + 2).

It is a plaindrome in base 16.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 27789 + ... + 27832.

It is an arithmetic number, because the mean of its divisors is an integer number (250299).

2^1223662 is an apocalyptic number.

1223662 is a deficient number, since it is larger than the sum of its proper divisors (778730).

1223662 is a wasteful number, since it uses less digits than its factorization.

1223662 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55634.

The product of its digits is 864, while the sum is 22.

The square root of 1223662 is about 1106.1925691307. The cubic root of 1223662 is about 106.9597775857.

Adding to 1223662 its reverse (2663221), we get a palindrome (3886883).

The spelling of 1223662 in words is "one million, two hundred twenty-three thousand, six hundred sixty-two".