12273747 has 4 divisors (see below), whose sum is σ = 16365000. Its totient is φ = 8182496.

The previous prime is 12273689. The next prime is 12273761. The reversal of 12273747 is 74737221.

12273747 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 12273747 - 2⁶ = 12273683 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12273787) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2045622 + ... + 2045627.

It is an arithmetic number, because the mean of its divisors is an integer number (4091250).

Almost surely, 2^12273747 is an apocalyptic number.

12273747 is a deficient number, since it is larger than the sum of its proper divisors (4091253).

12273747 is an equidigital number, since it uses as much as digits as its factorization.

12273747 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4091252.

The product of its digits is 16464, while the sum is 33.

The square root of 12273747 is about 3503.3907860814. The cubic root of 12273747 is about 230.6706763181.

The spelling of 12273747 in words is "twelve million, two hundred seventy-three thousand, seven hundred forty-seven".