1223897 has 2 divisors, whose sum is σ = 1223898. Its totient is φ = 1223896.

The previous prime is 1223879. The next prime is 1223921. The reversal of 1223897 is 7983221.

Together with previous prime (1223879) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1175056 + 48841 = 1084^2 + 221^2 .

It is a cyclic number.

It is not a de Polignac number, because 1223897 - 2¹⁶ = 1158361 is a prime.

It is not a weakly prime, because it can be changed into another prime (1223857) by changing a digit.

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 as a sum of consecutive naturals, namely, 611948 + 611949.

It is an arithmetic number, because the mean of its divisors is an integer number (611949).

2^1223897 is an apocalyptic number.

It is an amenable number.

1223897 is a deficient number, since it is larger than the sum of its proper divisors (1).

1223897 is an equidigital number, since it uses as much as digits as its factorization.

1223897 is an odious number, because the sum of its binary digits is odd.

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

The square root of 1223897 is about 1106.2987842351. The cubic root of 1223897 is about 106.9666242310.

The spelling of 1223897 in words is "one million, two hundred twenty-three thousand, eight hundred ninety-seven".