1223437 has 2 divisors, whose sum is σ = 1223438. Its totient is φ = 1223436.

The previous prime is 1223419. The next prime is 1223447. The reversal of 1223437 is 7343221.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1212201 + 11236 = 1101^2 + 106^2 .

It is a cyclic number.

It is not a de Polignac number, because 1223437 - 2⁷ = 1223309 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1223447) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 611718 + 611719.

It is an arithmetic number, because the mean of its divisors is an integer number (611719).

2^1223437 is an apocalyptic number.

It is an amenable number.

1223437 is a deficient number, since it is larger than the sum of its proper divisors (1).

1223437 is an equidigital number, since it uses as much as digits as its factorization.

1223437 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1008, while the sum is 22.

The square root of 1223437 is about 1106.0908642603. The cubic root of 1223437 is about 106.9532214656.

Adding to 1223437 its reverse (7343221), we get a palindrome (8566658).

The spelling of 1223437 in words is "one million, two hundred twenty-three thousand, four hundred thirty-seven".