1223849 has 16 divisors (see below), whose sum is σ = 1430016. Its totient is φ = 1036800.

The previous prime is 1223777. The next prime is 1223857. The reversal of 1223849 is 9483221.

It is a cyclic number.

It is not a de Polignac number, because 1223849 - 2¹² = 1219753 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 11.

It is not an unprimeable number, because it can be changed into a prime (1223879) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12569 + ... + 12665.

It is an arithmetic number, because the mean of its divisors is an integer number (89376).

2^1223849 is an apocalyptic number.

It is an amenable number.

1223849 is a deficient number, since it is larger than the sum of its proper divisors (206167).

1223849 is a wasteful number, since it uses less digits than its factorization.

1223849 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 176.

The product of its digits is 3456, while the sum is 29.

The square root of 1223849 is about 1106.2770900638. The cubic root of 1223849 is about 106.9652258385.

The spelling of 1223849 in words is "one million, two hundred twenty-three thousand, eight hundred forty-nine".