1223386 has 4 divisors (see below), whose sum is σ = 1835082. Its totient is φ = 611692.

The previous prime is 1223381. The next prime is 1223419. The reversal of 1223386 is 6833221.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 632025 + 591361 = 795^2 + 769^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 1223386.

It is not an unprimeable number, because it can be changed into a prime (1223381) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 305845 + ... + 305848.

2^1223386 is an apocalyptic number.

1223386 is a deficient number, since it is larger than the sum of its proper divisors (611696).

1223386 is an equidigital number, since it uses as much as digits as its factorization.

1223386 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 611695.

The product of its digits is 1728, while the sum is 25.

The square root of 1223386 is about 1106.0678098562. The cubic root of 1223386 is about 106.9517353000.

The spelling of 1223386 in words is "one million, two hundred twenty-three thousand, three hundred eighty-six".