1223807 has 8 divisors (see below), whose sum is σ = 1375584. Its totient is φ = 1080288.

The previous prime is 1223777. The next prime is 1223857. The reversal of 1223807 is 7083221.

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

It is a cyclic number.

It is not a de Polignac number, because 1223807 - 2¹⁶ = 1158271 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1223857) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 1748 + ... + 2345.

It is an arithmetic number, because the mean of its divisors is an integer number (171948).

2^1223807 is an apocalyptic number.

1223807 is a deficient number, since it is larger than the sum of its proper divisors (151777).

1223807 is a wasteful number, since it uses less digits than its factorization.

1223807 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4129.

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

The square root of 1223807 is about 1106.2581073149. The cubic root of 1223807 is about 106.9640022151.

Adding to 1223807 its sum of digits (23), we get a triangular number (1223830 = T₁₅₆₄).

The spelling of 1223807 in words is "one million, two hundred twenty-three thousand, eight hundred seven".