1223398 has 8 divisors (see below), whose sum is σ = 2001960. Its totient is φ = 556080.

The previous prime is 1223381. The next prime is 1223419. The reversal of 1223398 is 8933221.

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

It is a congruent number.

It is an unprimeable number.

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 in 3 ways as a sum of consecutive naturals, for example, 27783 + ... + 27826.

It is an arithmetic number, because the mean of its divisors is an integer number (250245).

2^1223398 is an apocalyptic number.

1223398 is a deficient number, since it is larger than the sum of its proper divisors (778562).

1223398 is a wasteful number, since it uses less digits than its factorization.

1223398 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55622.

The product of its digits is 2592, while the sum is 28.

The square root of 1223398 is about 1106.0732344651. The cubic root of 1223398 is about 106.9520849897.

The spelling of 1223398 in words is "one million, two hundred twenty-three thousand, three hundred ninety-eight".