12263649 has 4 divisors (see below), whose sum is σ = 16351536. Its totient is φ = 8175764.

The previous prime is 12263611. The next prime is 12263651. The reversal of 12263649 is 94636221.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 94636221 = 3 ⋅31545407.

It is a cyclic number.

It is not a de Polignac number, because 12263649 - 2¹³ = 12255457 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (12263689) 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 in 3 ways as a sum of consecutive naturals, for example, 2043939 + ... + 2043944.

It is an arithmetic number, because the mean of its divisors is an integer number (4087884).

Almost surely, 2^12263649 is an apocalyptic number.

It is an amenable number.

12263649 is a deficient number, since it is larger than the sum of its proper divisors (4087887).

12263649 is an equidigital number, since it uses as much as digits as its factorization.

12263649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4087886.

The product of its digits is 15552, while the sum is 33.

The square root of 12263649 is about 3501.9493143105. The cubic root of 12263649 is about 230.6073989402.

The spelling of 12263649 in words is "twelve million, two hundred sixty-three thousand, six hundred forty-nine".