1223899 has 8 divisors (see below), whose sum is σ = 1290240. Its totient is φ = 1158696.

The previous prime is 1223897. The next prime is 1223921. The reversal of 1223899 is 9983221.

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 1223899 - 2¹ = 1223897 is a prime.

It is a Duffinian number.

It is a plaindrome in base 10.

It is not an unprimeable number, because it can be changed into a prime (1223897) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2712 + ... + 3130.

It is an arithmetic number, because the mean of its divisors is an integer number (161280).

2^1223899 is an apocalyptic number.

1223899 is a deficient number, since it is larger than the sum of its proper divisors (66341).

1223899 is a wasteful number, since it uses less digits than its factorization.

1223899 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 569.

The product of its digits is 7776, while the sum is 34.

The square root of 1223899 is about 1106.2996881496. The cubic root of 1223899 is about 106.9666824965.

The spelling of 1223899 in words is "one million, two hundred twenty-three thousand, eight hundred ninety-nine".