1223798 has 8 divisors (see below), whose sum is σ = 1844040. Its totient is φ = 609120.

The previous prime is 1223777. The next prime is 1223857. The reversal of 1223798 is 8973221.

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

It is a Curzon number.

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, 788 + ... + 1751.

It is an arithmetic number, because the mean of its divisors is an integer number (230505).

2^1223798 is an apocalyptic number.

1223798 is a deficient number, since it is larger than the sum of its proper divisors (620242).

1223798 is a wasteful number, since it uses less digits than its factorization.

1223798 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2782.

The product of its digits is 6048, while the sum is 32.

The square root of 1223798 is about 1106.2540395406. The cubic root of 1223798 is about 106.9637400064.

Adding to 1223798 its sum of digits (32), we get a triangular number (1223830 = T₁₅₆₄).

The spelling of 1223798 in words is "one million, two hundred twenty-three thousand, seven hundred ninety-eight".